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Kikuchi K, Kumagai K, Yamada S, Nejima S, Choe H, Ike H, Kobayashi N, Inaba Y. Difference in the anterior displacement of the tibial tuberosity relative to the proximal tibial fragment between opening wedge and closed wedge high tibial osteotomies. SICOT J 2024; 10:21. [PMID: 38819291 PMCID: PMC11141518 DOI: 10.1051/sicotj/2024020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/04/2024] [Indexed: 06/01/2024] Open
Abstract
INTRODUCTION This study aimed to investigate the anterior-posterior (AP) displacement of the tibial tuberosity (TT) and to assess the difference between closed wedge and opening wedge high tibial osteotomies (OWHTO and CWHTO). METHODS One hundred consecutive knees with osteoarthritis that underwent OWHTO (50 knees) or CWHTO (50 knees) were investigated retrospectively. The femorotibial angle (FTA) was measured on AP radiographs of the knee. AP displacement of the TT, posterior tibial slope (PTS), the modified Blackburne-Peel index (mBPI), and the modified Caton-Deschamps index (mCDI) were measured on lateral radiographs of the knee. RESULTS Patients had a mean correction angle of 12.58 ± 2.84° and 18.98 ± 5.14° (P < 0.001), with a mean AP displacement of TT of 0.84 ± 2.66 mm and 7.78 ± 3.41 mm (P < 0.001) in OWHTO and CWHTO, respectively. The AP displacement of the TT per correction of 1° was significantly greater in CWHTO than in OWHTO (P < 0.001). A significant correlation was found between the correction angle and AP displacement of the TT in CWHTO (r = -0.523, P < 0.001), but not in OWHTO. The change of PTS per correction of 1° was significantly greater in OWHTO than in CWHTO (P < 0.001). The changes of mBPI and mCDI per correction of 1° were significantly greater in CWHTO than in OWHTO (P < 0.001 and P < 0.001, respectively). CONCLUSIONS There was greater anterior displacement of the TT in CWHTO than in OWHTO, which was correlated with the correction angle. The results suggested that CWHTO would be better than OWHTO when a concomitant anteriorization of TT is required.
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Affiliation(s)
- Kentaro Kikuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Ken Kumagai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Shunsuke Yamada
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Shuntaro Nejima
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Hyonmin Choe
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Hiroyuki Ike
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
| | - Naomi Kobayashi
- Department of Orthopaedic Surgery, Yokohama City University Medical Center Yokohama 232-0024 Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University Yokohama 236-0004 Japan
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Debopadhaya S, Acosta E, Ortiz D. Trends and outcomes in the surgical management of young adults with knee osteoarthritis using high tibial osteotomy and unicompartmental knee arthroplasty. Arch Orthop Trauma Surg 2024:10.1007/s00402-024-05362-x. [PMID: 38771360 DOI: 10.1007/s00402-024-05362-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/05/2024] [Indexed: 05/22/2024]
Abstract
INTRODUCTION A significant portion of knee osteoarthritis is diagnosed in patients under the age of 55, where greater activity demands make total knee arthroplasty less desirable. High tibial osteotomy (HTO) and unicompartmental knee arthroplasty (UKA) are useful alternatives, but there is little understanding of which procedure is advantageous. Hence, this study examines the utilization, complication, and reoperation rates among the HTO vs. UKA in young patients with primary osteoarthritis. METHODS A retrospective review of the National Surgical Quality Improvement Program was performed to identify 2318 patients < 55 years of age who received either a HTO or UKA for primary osteoarthritis between 2011 and 2021. Bivariate analyses compared preoperative and intraoperative characteristics among each procedure. Then, multivariate analyses examined if either procedure was associated with worse 30-day postoperative complications or need for reoperation, independent of the statistically significant pre- and intraoperative disparities. RESULTS UKAs were performed 14.2 times more commonly than HTOs, and the patients selected for HTO were more likely to be younger, have a lower BMI, have the healthiest ASA Class score, and less likely to have hypertension requiring medication (p < 0.001). HTOs took 17.5% longer to perform and had a longer average length of stay (p < 0.001), while UKAs were more likely to be performed out-patient (p < 0.001). HTOs also had higher rates of serious complications (p = 0.02), overall complications (p = 0.004), and need for reoperation (p = 0.004). Multivariate modelling demonstrated that procedure type was not a predictor of serious complications, but the use of HTO was significantly associated with any complications (odds ratio = 3.63, p = 0.001) and need for reoperation (3.21, p = 0.029). CONCLUSION Although healthier patients were selected for HTOs, UKAs were found to have a lower risk of complications and immediate reoperation. Additionally, UKAs had the advantage of lower operative burden, shorter length of stay, and a higher efficacy in outpatient settings.
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Affiliation(s)
- Shayom Debopadhaya
- Department of Orthopaedics, Albany Medical College, 49 New Scotland Ave, Albany, NY, 12208, USA
| | - Ernesto Acosta
- Department of Orthopaedics, Albany Medical College, 49 New Scotland Ave, Albany, NY, 12208, USA
| | - Dionisio Ortiz
- Department of Orthopaedics, Albany Medical College, 49 New Scotland Ave, Albany, NY, 12208, USA.
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Miyama K, Akiyama T, Bise R, Nakamura S, Nakashima Y, Uchida S. Development of an automatic surgical planning system for high tibial osteotomy using artificial intelligence. Knee 2024; 48:128-137. [PMID: 38599029 DOI: 10.1016/j.knee.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/06/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND This study proposed an automatic surgical planning system for high tibial osteotomy (HTO) using deep learning-based artificial intelligence and validated its accuracy. The system simulates osteotomy and measures lower-limb alignment parameters in pre- and post-osteotomy simulations. METHODS A total of 107 whole-leg standing radiographs were obtained from 107 patients who underwent HTO. First, the system detected anatomical landmarks on radiographs. Then, it simulated osteotomy and automatically measured five parameters in pre- and post-osteotomy simulation (hip knee angle [HKA], weight-bearing line ratio [WBL ratio], mechanical lateral distal femoral angle [mLDFA], mechanical medial proximal tibial angle [mMPTA], and mechanical lateral distal tibial angle [mLDTA]). The accuracy of the measured parameters was validated by comparing them with the ground truth (GT) values given by two orthopaedic surgeons. RESULTS All absolute errors of the system were within 1.5° or 1.5%. All inter-rater correlation confidence (ICC) values between the system and GT showed good reliability (>0.80). Excellent reliability was observed in the HKA (0.99) and WBL ratios (>0.99) for the pre-osteotomy simulation. The intra-rater difference of the system exhibited excellent reliability with an ICC value of 1.00 for all lower-limb alignment parameters in pre- and post-osteotomy simulations. In addition, the measurement time per radiograph (0.24 s) was considerably shorter than that of an orthopaedic surgeon (118 s). CONCLUSION The proposed system is practically applicable because it can measure lower-limb alignment parameters accurately and quickly in pre- and post-osteotomy simulations. The system has potential applications in surgical planning systems.
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Affiliation(s)
- Kazuki Miyama
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan; Department of Advanced Information Technology, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan; Akiyama Clinic, 2-28-39, Noke, Sawaraku, Fukuoka City, Fukuoka 814-0171, Japan.
| | - Takenori Akiyama
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan; Akiyama Clinic, 2-28-39, Noke, Sawaraku, Fukuoka City, Fukuoka 814-0171, Japan
| | - Ryoma Bise
- Department of Advanced Information Technology, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - Shunsuke Nakamura
- Akiyama Clinic, 2-28-39, Noke, Sawaraku, Fukuoka City, Fukuoka 814-0171, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Seiichi Uchida
- Department of Advanced Information Technology, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
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Ahrend MD, Petzold D, Schuster P, Herbst M, Ihle C, Mayer P, Schröter S. Higher conversion rate to knee arthroplasty in female patients following medial open-wedge high tibial osteotomy. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38415780 DOI: 10.1002/ksa.12083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/29/2024]
Abstract
PURPOSE Most studies about medial open-wedge high tibial osteotomy (HTO) reported outcomes without focusing on gender differences. Therefore, the study compared the long-term survival rate and postoperative subjective knee function after HTO in female versus male patients with symptomatic medial compartment knee osteoarthritis. METHODS The data of three cohorts with long-term outcomes were analysed (n = 245; 32% females; age: 49 ± 7 years; Kellgren Lawrence Grade I 6.1%, II 32.7%, III 42.4%; IV 18.8%). The minimum follow-up was at least 6 years or an earlier conversion to total knee arthroplasty (TKA). The gender-specific survival rate after HTO was calculated after 5 and 10 years and compared using Kaplan-Meier analysis and the logrank test. Baseline characteristics and subjective knee function (International Knee Documentation Committee [IKDC]/Lysholm) were analysed between both genders. RESULTS Forty of 78 (51.3%) women and 41 of 167 men (24.5%) underwent TKA. HTO survival in females was significantly lower (p = 0.0010). The 5- and 10-year survival rates were 85.9% and 62.6% for females and 93.4% and 77.7% for males. In females and males, from preoperative to the last follow-up, the IKDC (43 ± 15 to 58 ± 17; 47 ± 14 to 67 ± 18) and the Lysholm (42 ± 18 to 72 ± 18; 55 ± 22 to 77 ± 23) improved significantly (all p < 0.0001). Females had significantly lower preoperative and postoperative IKDC (p = 0.0438; p = 0.0035) and Lysholm scores (p = 0.0002; p = 0.0323). But the absolute improvements of the IKDC and Lysholm were not significantly different between genders. CONCLUSIONS Females had higher conversion rates to TKA and lower knee function at the last follow-up. However, preoperative knee function was lower in females and the absolute improvement following HTO was similar for both genders. In general, females benefit from HTO to treat medial knee arthritis, and TKA could be postponed for half of female patients for more than 10 years. However, surgeons must be aware of the described inferior outcomes in females for realistic patient expectation management. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Marc-Daniel Ahrend
- Department of Traumatology and Reconstructive Surgery, BG Trauma Center Tübingen, Eberhard Karls University of Tübingen, Tübingen, Germany
- Osteotomie Komitee der Deutschen Kniegesellschaft, München, Germany
| | - Daniel Petzold
- Department of Traumatology and Reconstructive Surgery, BG Trauma Center Tübingen, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Philipp Schuster
- Osteotomie Komitee der Deutschen Kniegesellschaft, München, Germany
- Centre for Sports Orthopedics and Special Joint Surgery, Orthopedic Hospital Markgroeningen, Markgroeningen, Germany
- Department of Orthopedics and Traumatology, Paracelsus Medical University, Nuremberg, Germany
| | - Moritz Herbst
- Department of Traumatology and Reconstructive Surgery, BG Trauma Center Tübingen, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Christoph Ihle
- Department of Traumatology and Reconstructive Surgery, BG Trauma Center Tübingen, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Philipp Mayer
- Osteotomie Komitee der Deutschen Kniegesellschaft, München, Germany
- Centre for Sports Orthopedics and Special Joint Surgery, Orthopedic Hospital Markgroeningen, Markgroeningen, Germany
| | - Steffen Schröter
- Department of Traumatology and Reconstructive Surgery, Diakonie Klinikum GmbH Jung-Stilling-Krankenhaus, Siegen, Germany
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Hodel S, Hasler J, Roth TA, Flury A, Sutter C, Fucentese SF, Fürnstahl P, Vlachopoulos L. Validation of a Three-Dimensional Weight-Bearing Measurement Protocol for Medial Open-Wedge High Tibial Osteotomy. J Clin Med 2024; 13:1280. [PMID: 38592100 PMCID: PMC10931564 DOI: 10.3390/jcm13051280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 04/10/2024] Open
Abstract
Three-dimensional (3D) deformity assessment and leg realignment planning is emerging. The aim of this study was to (1) validate a novel 3D planning modality that incorporates the weight-bearing (WB) state (3D WB) by comparing it to existing modalities (3D non-weight-bearing (NWB), 2D WB) and (2) evaluate the influence of the modality (2D vs. 3D) and the WB condition on the measurements. Three different planning and deformity measurement protocols were analyzed in 19 legs that underwent medial open-wedge high tibial osteotomy (HTO): (1) a 3D WB protocol, after 2D/3D registration of 3D CT models onto the long-leg radiograph (LLR) (3D WB), (2) a 3D NWB protocol based on the 3D surface models obtained in the supine position (3D NWB), and (3) a 2D WB protocol based on the LLR (2D WB). The hip-knee-ankle angle (HKA), joint line convergence angle (JLCA), and the achieved surgical correction were measured for each modality and patient. All the measurement protocols demonstrated excellent intermodal agreement for the achieved surgical correction, with an ICC of 0.90 (95% CI: 0.76-0.96)) (p < 0.001). Surgical correction had a higher mean absolute difference compared to the 3D opening angle (OA) when measured with the WB protocols (3D WB: 2.7 ± 1.8°, 3D NWB: 1.9 ± 1.3°, 2D WB: 2.2 ± 1.3°), but it did not show statistical significance. The novel planning modality (3D WB) demonstrated excellent agreement when measuring the surgical correction after HTO compared to existing modalities.
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Affiliation(s)
- Sandro Hodel
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
| | - Julian Hasler
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
| | - Tabitha Arn Roth
- Research in Orthopedic Computer Science, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (P.F.)
| | - Andreas Flury
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
| | - Cyrill Sutter
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
| | - Sandro F. Fucentese
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
| | - Philipp Fürnstahl
- Research in Orthopedic Computer Science, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (P.F.)
| | - Lazaros Vlachopoulos
- Department of Orthopedics, Balgrist University Hospital, Forchstrasse 320, 8008 Zurich, Switzerland (A.F.)
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Constantin H, Salmon LJ, Russell V, Sundaraj K, Roe JP, Pinczewski LA. 20-Year Outcomes of High Tibial Osteotomy: Determinants of Survival and Functional Outcome. Am J Sports Med 2024; 52:344-351. [PMID: 38243788 DOI: 10.1177/03635465231217742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
BACKGROUND High tibial osteotomy (HTO) is a successful joint-preserving procedure for the treatment of medial compartment osteoarthritis. Long-term survivorship of HTO ranges from 40% to 85%. There are consistent factors that predict failure. PURPOSE To determine the 20-year survival of HTO and identify predictors of failure. STUDY DESIGN Case series; Level of evidence, 4. METHODS A total of 100 consecutive patients with medial bone-on-bone arthritis were prospectively studied to provide long-term patient-reported outcome measures after lateral closing-wedge HTO and determine the time to failure. Failure was defined as conversion to arthroplasty (total knee arthroplasty or unicompartmental knee arthroplasty) or revision HTO. RESULTS At 20 years, HTO survival was determined in 95 patients, and 5 were lost to follow-up. The overall survivorship of HTO at 20 years was 44%. The significant factors that were associated with better survivorship were age <55 years, body mass index <30, and Western Ontario and McMaster Universities Osteoarthritis Index pain score >45. These factors were used to define the favorable candidates. In the favorable candidates, survivorship was 100% at 5 years, after which there was a gradual decline to 62% survival at 20 years. Of those with HTO survival, 32 of 33 (97%) reported satisfaction with surgery, with a mean Knee injury and Osteoarthritis Outcome Score Pain score of 91 and Activities of Daily Living score of 97. CONCLUSION HTO is a successful surgical option to treat medial compartment osteoarthritis and prevent the need for arthroplasty in young patients. The most suitable candidates for HTO are aged <55 years, are not obese, and have not progressed to severe symptomatic disability.
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Affiliation(s)
- Harry Constantin
- North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, Australia
| | - Lucy J Salmon
- North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, Australia
- School of Medicine, University of Notre Dame, Sydney, Australia
| | | | - Keran Sundaraj
- North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, Australia
| | - Justin P Roe
- North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia
| | - Leo A Pinczewski
- North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, Australia
- School of Medicine, University of Notre Dame, Sydney, Australia
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Fayard J, Saad M, Gomes L, Kacem S, Abid H, Vieira TD, Lambrey P, Ollivier M, Thaunat M. Patient-specific cutting guides increase accuracy of medial opening wedge high tibial osteotomy procedure: A retrospective case-control study. J Exp Orthop 2024; 11:e12013. [PMID: 38505541 PMCID: PMC10949175 DOI: 10.1002/jeo2.12013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/09/2024] [Indexed: 03/21/2024] Open
Abstract
Purpose To compare the accuracy of patient-specific guides (PSCG) to the standard technique in medial open-wedge high tibial osteotomy (OWHTO). Secondary objectives were to evaluate factors that could influence accuracy and to compare the complication rate and operating time for both procedures. Methods A retrospective analysis of prospective collected data was performed. Between March 2011 and May 2018, 49 patients with isolated medial knee osteoarthritis who were operated for OWHTO using PSCG and 38 patients using the standard technique were included. Preoperative and postoperative deformities were evaluated on long leg radiographs by measuring the mechanical medial proximal tibial angle, mechanical lateral distal femoral angle, hip knee ankle angle (HKA), and joint line convergence angle. Pre- and postoperative posterior tibial slope was also evaluated. Accuracy was evaluated by analysing the difference between the preoperative planned and the actual postoperative HKA. Operating time and complication rate were also recorded in both groups. Results The mean preoperative HKA was 173.4° (±3.1°) in the PSCG group and 173.3° (±2.4°) in the standard group (p = 0.8416). Mean planned HKA were 182.8° (±1.1°) and 184.0° (±0°) respectively for the PSCG and the standard group. Mean postoperative HKA were 181.9° (±1.9°) and 182.6° (±3.1°) respectively for the PSCG and the standard group. An accuracy of ±2° in the HKA was achieved in 44 (90%) in the PSCG group and 24 (65%) in the standard group (p = 0.006). The probability of achieving a HKA accuracy was four times higher for patients in the PSCG group (odds ratio [OR] = 4.06, [1.1; 15.3], p = 0.038). Also, higher preoperative Ahlback grade was associated with precision, all other parameters being equal (OR = 4.2, [0.13; 0.97], p = 0.04). Conclusion In this study, the PSCG technique was significantly more accurate for achieving the planned HKA in OWHTO. Complication rates and operating times were comparable between groups. Level of Evidence Level IV, case-control study.
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Affiliation(s)
- Jean‐Marie Fayard
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Maxime Saad
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Lucas Gomes
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Sami Kacem
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Hichem Abid
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Thais D. Vieira
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Pierre‐Jean Lambrey
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
| | - Matthieu Ollivier
- Department of Orthopedics and Traumatology, Aix Marseille University, APHM, CNRS, ISM, Sainte‐Marguerite HospitalInstitute for LocomotionMarseilleFrance
- Department of Orthopedics and Traumatology, St Marguerite HospitalInstitute of Movement and LocomotionMarseilleFrance
| | - Mathieu Thaunat
- Ramsay Santé, Hôpital Privé Jean Mermoz—Centre Orthopedique Santy, FIFA Medical Center of ExcellenceLyonFrance
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Kumagai K, Yamada S, Nejima S, Sotozawa M, Inaba Y. Cartilage Degeneration of the Lateral Compartment of the Knee at Second-Look Arthroscopy Is Associated With Deterioration of 10-Year Clinical Outcomes After Opening-Wedge High Tibial Osteotomy. Arthroscopy 2023; 39:2354-2362. [PMID: 37120041 DOI: 10.1016/j.arthro.2023.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/21/2023] [Accepted: 03/31/2023] [Indexed: 05/01/2023]
Abstract
PURPOSE To identify the arthroscopic findings associated with deterioration of 10-year clinical outcomes after opening-wedge high tibial osteotomy (OWHTO) in patients with knee osteoarthritis. METHODS A total of 114 consecutive knees of 91 patients with knee osteoarthritis who underwent OWHTO between 2007 and 2011 were retrospectively reviewed. Of these patients, those who underwent second-look arthroscopy and were followed up for a minimum of 10 years were enrolled. The Knee Society Score (KSS) and hip-knee-ankle angle were assessed. Cartilage status was graded at the time of osteotomy (first look) and plate removal (second look) according to the International Cartilage Repair Society (ICRS) grading system. The KSS knee subscale score and function subscale score were assessed separately, and on the basis of the changes in each of these scores from 1 to 10 years postoperatively and the minimal clinically important difference (MCID), the patients were divided into 2 groups: deteriorated (deterioration of score ≥ MCID) and non-deteriorated (deterioration of score < MCID). RESULTS Sixty-nine knees were included in this study. The mean knee score improved continuously from 48.7 ± 11.3 preoperatively to 86.8 ± 10.3 at 1 year (P < .001), 87.5 ± 9.9 at 5 years (P < .001), and 86.5 ± 10.5 at 10 years (P < .001) postoperatively. The mean function score also improved continuously from 62.5 ± 12.1 preoperatively to 90.7 ± 12.9 at 1 year (P < .001), 91.6 ± 12.1 at 5 years (P < .001), and 88.5 ± 13.1 at 10 years (P < .001) postoperatively. Three knees underwent conversion to total knee arthroplasty within 10 years postoperatively. The deteriorated KSS group showed significantly progressed ICRS grades in the lateral compartment compared with the non-deteriorated KSS group. The ICRS grade in the lateral compartment at second-look arthroscopy was identified as the only significant factor associated with both knee score deterioration (odds ratio, 4.89; P = .03) and function score deterioration (odds ratio, 3.91; P = .03) on multivariable logistic regression analysis. CONCLUSIONS The presence of cartilage degeneration of the lateral compartment of the knee at second-look arthroscopy is associated with deterioration of long-term clinical outcomes after OWHTO. LEVEL OF EVIDENCE Level IV, therapeutic case series.
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Affiliation(s)
- Ken Kumagai
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan.
| | - Shunsuke Yamada
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Shuntaro Nejima
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Masaichi Sotozawa
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
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Bai Y, Lin B, Wang M, Ding H, Sun W, Sun J. Medial opening-wedge high tibial osteotomy with microfracture in treatment of varus medial compartmental knee osteoarthritis: clinical outcomes and second-look arthroscopic results. Front Bioeng Biotechnol 2023; 11:1247165. [PMID: 37811370 PMCID: PMC10551133 DOI: 10.3389/fbioe.2023.1247165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Objective: This study aimed to investigate the clinical outcomes of medial opening high tibial osteotomy (MOWHTO) combined with arthroscopic microfracture in the treatment of varus medial compartmental knee osteoarthritis and to assess cartilage regeneration using second-look arthroscopy. Methods: This study involved 86 patients (86 knees) who underwent MOWHTO and microfracture from August 2016 to August 2020, including 15 men and 71 women with an average age of 55.3 ± 7.6 years (range, 42-71 years). The patients underwent a second-look arthroscopy to evaluate the status of cartilage regeneration at the time of plate removal, an average of 2 years after the initial osteotomy. Clinical and radiological examinations were performed preoperatively and at the final follow-up visit. The radiologic evaluation included the weight-bearing line ratio (WBL ratio), mechanical femorotibial angle (FTA), medial proximal tibial angle (MPTA), posterior tibial slope angle (PTS) and Kellgren-Lawrence (KL) grade. Clinical outcomes were assessed using the Knee Society score (KSS) and International Knee Documentation Committee (IKDC) scores. Arthroscopic findings were assessed by macroscopic evaluation of cartilage repair according to the International Cartilage Repair Society (ICRS) grading system. Results: The mean KSS and IKDC scores significantly improved at the final follow-up compared to the scores obtained preoperatively (p < 0.05). At the time of plate removal, a second-look arthroscopic examination showed that the ICRS grade of the medial femoral condyle was as follows: grade I -11 cases, grade II -56, grade III-12, and grade IV-7, and cartilage regeneration was seen in 85% of knees (73/86). The ICRS grade of medial tibial plateau was grade I-12 cases, grade II-44, grade III-22, and grade IV-8, and cartilage regeneration was seen in 63% of knees (54/86). Significant differences were observed between cartilage regeneration and clinical outcomes (p < 0.05). Clinical results were better in the good cartilage regeneration group (grades I and II) than were in the poor cartilage regeneration group (grades III and IV). Conclusion: MOWHTO combined with arthroscopic microfracture can effectively improve clinical outcomes in the treatment of varus medial compartmental knee osteoarthritis. Cartilage regeneration can be promoted by correcting varus deformities, which affect clinical outcomes.
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Affiliation(s)
| | | | | | | | - Weibing Sun
- Department of Orthopaedic Surgery, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Sun
- Department of Orthopaedic Surgery, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Dhillon J, Kraeutler MJ, Fasulo SM, Belk JW, Scillia AJ, McCulloch PC. Isolated Osteotomy Versus Combined Osteotomy and Cartilage Repair for Osteoarthritis or Focal Chondral Defects of the Medial Compartment of the Knee Joint: A Systematic Review. Orthop J Sports Med 2023; 11:23259671231162030. [PMID: 37179710 PMCID: PMC10170602 DOI: 10.1177/23259671231162030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/19/2023] [Indexed: 05/15/2023] Open
Abstract
Background The extent to which concomitant cartilage repair provides an improvement in clinical outcomes after osteotomy is unclear. Purpose To compare studies reporting clinical outcomes after isolated osteotomy with or without cartilage repair for osteoarthritis (OA) or focal chondral defects (FCDs) of the knee joint. Study Design Systematic review; Level of evidence, 4. Methods A systematic review was conducted according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines by searching PubMed, Cochrane Library, and Embase databases. The search was done to identify comparative studies that directly compared outcomes between isolated osteotomy-high tibial osteotomy or distal femoral osteotomy-and osteotomy with concomitant cartilage repair for OA or FCDs of the knee joint. Patients were evaluated based on reoperation rate, magnetic resonance observation of cartilage repair tissue score, macroscopic International Cartilage Regeneration & Joint Preservation Society score, and patient-reported outcomes. Results In total, 6 studies-level 2 evidence (n = 2);, level 3 evidence (n = 3);, and level 4 evidence (n = 1)-met the inclusion criteria, including a total of 228 patients undergoing osteotomy alone (group A) and 255 patients undergoing osteotomy with concomitant cartilage repair (group B). The mean patient age was 53.4 and 54.8 years, respectively, and the mean preoperative alignment was 6.6° and 6.7° of varus in groups A and B, respectively. The mean follow-up time was 71.5 months. All studies assessed medial compartment lesions with varus deformity. One study compared osteotomy alone for patients with medial compartment OA versus osteotomy with autologous chondrocyte implantation for patients with FCDs of the medial compartment. Three other studies included a heterogeneous cohort of patients with OA and FCDs in both groups. Only 1 study isolated its comparison to patients with medial compartment OA and 1 study isolated its comparison to patients with FCDs. Conclusion There is limited evidence with substantial heterogeneity between studies on clinical outcomes after osteotomy alone versus osteotomy with cartilage repair for OA or FCDs of the knee joint. At this time, no conclusion can be made regarding the role of additional cartilage procedures in treating medial compartment OA or FCDs. Further studies are needed that isolate specific disease pathology and specific cartilage procedures.
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Affiliation(s)
- Jaydeep Dhillon
- Rocky Vista University College of Osteopathic Medicine, Parker, Colorado, USA
| | - Matthew J. Kraeutler
- Houston Methodist Hospital, Houston, Texas, USA
- Matthew J. Kraeutler, MD, Department of Orthopedics & Sports Medicine, Houston Methodist Hospital, 6445 Main Street, Suite 2300, Houston, TX 77030, USA ()
| | - Sydney M. Fasulo
- Saint Joseph’s University Medical Center, Department of Orthopaedic Surgery, Paterson, New Jersey, USA
| | - John W. Belk
- University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Anthony J. Scillia
- Saint Joseph’s University Medical Center, Department of Orthopaedic Surgery, Paterson, New Jersey, USA
- Academy Orthopaedics, Wayne, New Jersey, USA
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Chen W, Zhang R, Jia S, Cui Y, Zhao K, Wang T, Lv H, Zhu Y, Tian H, Wang B, Li J, Wang T, Lyu SR, Wang J, Zhang Y. Proximal tibia osteotomy with absorbable spacer combined with fibular osteotomy versus high tibial osteotomy for medial compartmental knee osteoarthritis. INTERNATIONAL ORTHOPAEDICS 2023:10.1007/s00264-023-05808-8. [PMID: 37074375 DOI: 10.1007/s00264-023-05808-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 03/30/2023] [Indexed: 04/20/2023]
Abstract
PURPOSE The study aimed to compare the perioperative complications, short-term clinical outcomes, patient-reported outcomes, and radiographic parameters of tibiofibular proximal osteotomy combined with absorbable spacer insertion (TPOASI) and open-wedge high tibial osteotomy (OWHTO) in a two year postoperative time period. METHODS A total of 160 patients with Kellgren-Lawrence classification grade 3 medial compartmental knee OA were randomized to receive either TPOASI (n = 82) or OWHTO (n = 78). The primary and secondary outcomes were measured preoperatively, postoperatively, and at each follow-up examination. The primary outcomes were the between-group change in the Western Ontario and McMaster Universities Global score (WOMAC). Secondary measures included visual analog scale (VAS), radiographic parameters, American Knee Society Score (KSS), operation time, blood loss, length of incision, hospital stay, and relevant complications. Postoperative radiographic parameters, including the femorotibial angle (FTA), varus angle (VA), and joint line convergence angle (JLCA), were measured to evaluate the correction of varus deformity. RESULTS No significant differences were found in the baseline data between the two groups. Both methods improved functional status and pain postoperatively. For primary outcomes of both groups, statistical difference was observed in WOMAC scores at the 6-month follow-up (P < 0.001). For secondary outcomes, no statistical difference was observed between the groups during the 2-year follow-up (P > 0.05). For TPOASI vs. OWHTO, the mean hospital stay (6.6 ± 1.3 days vs. 7.8 ± 2.1 days) was shorter (P < 0.001), and both blood loss (70.56 ± 35.58 vs. 174.00 ± 66.33 mL) and complication rate (3.7% vs. 12.8%) were significantly lower (P < 0.005 for both). CONCLUSIONS Both approaches showed satisfactory functional outcomes and alleviated pain. However, TPOASI is a simple, feasible method with few complications, and it could be widely used.
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Affiliation(s)
- Wei Chen
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Ruipeng Zhang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Siming Jia
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Yunwei Cui
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Kuo Zhao
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Tianrui Wang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
- Department of Orthopedic Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, People's Republic of China
| | - Hongzhi Lv
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Yanbin Zhu
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Hongtao Tian
- Department of Orthopedic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Bo Wang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China
| | - Jidong Li
- Department of Orthopedic Surgery, Jingxing Xian Hospital, No. 20 Jianshe South Road, Jingxing, 050300, China
| | - Tonglin Wang
- Department of Orthopedic Surgery, Lincheng People's Hospital, No. 86 Linquan Road, Lincheng, 054399, China
| | - Shaw-Ruey Lyu
- International Health Promotion Center of the Knee Tzu-Chi Dalin General Hospital, Min-Shen Road, Dalin, Chiayi, Taiwan, 222
| | - Juan Wang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China.
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China.
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China.
| | - Yingze Zhang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Qiaoxi District, No. 139 Ziqiang Road, Shijiazhuang, 050051, China.
- NHC Key Laboratory of Intelligent Orthopedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, China.
- Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, Hebei, People's Republic of China.
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Song M, Lin X, Han W, Li J, Liu W. Is proximal tibial tubercle osteotomy superior to distal tibial tubercle osteotomy for medial compartmental osteoarthritis? A meta-analysis. J Orthop Surg Res 2023; 18:245. [PMID: 36967435 PMCID: PMC10041769 DOI: 10.1186/s13018-023-03725-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Open-wedge high tibial osteotomy (OWHTO) is commonly performed for the treatment of medial compartment knee osteoarthritis (KOA), and is classified into proximal tibial tubercle osteotomy (PTO) and distal tibial tubercle osteotomy (DTO). The PTO osteotomy point is generally located about 3-4 cm below the joint of the proximal tibia, and the osteotomy line points to the upper part of the proximal tibiofibular joint. The DTO osteotomy point is generally located about 0.5-1.0 cm below the tibial tubercle, and the osteotomy line points to the contralateral cortex. However, there is currently no consensus on which surgical technique is superior. The purpose of our study was to investigate which among the two is superior for medial KOA, with respect to knee joint parameters, clinical function, and complications. METHODS This study was conducted as per the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The Cochrane Central Library, MEDLINE, Embase, PubMed, CNKI, and WanFang databases were systematically searched for trials comparing PTO and DTO in patients with medial compartment KOA, from inception until March 2022. The meta-analysis was conducted using RevMan 5.2 software. The Cochrane risk-of-bias tool was used to assess methodological quality. Statistical analysis was performed with Stata 12.0. Outcomes of interest included the Insall-Salvati index (ISI), Caton-Deschamps index (CDI), Blackburne-Peel index (BPI), posterior tibial slope (PTS), and the Hospital for Special Surgery (HSS) knee-rating scale. RESULTS A total of 15 retrospective studies (910 knees) were included. There were no significant differences in the age or sex of included patients. There was a significant difference in the ISI, CDI, BPI, and PTS between the two groups (all p ≤ 0.05). Further, DTO was associated with a significantly greater number of postoperative complications (p < 0.05) compared to PTO. However, there was no significant difference in the femorotibial angle (FTA), mechanical medial proximal tibial angle (mMPTA), and HSS knee score (all p > 0.05). CONCLUSIONS Compared with DTO, PTO is associated with a greater incidence of postoperative patella baja and increased PTS, whereas DTO is associated with more postoperative complications. Nevertheless, both can significantly correct knee varus deformity and improve knee function; their early knee function scores are also similar. TRIAL REGISTRATION Prospective Register of Systematic Reviews (PROSPERO) registration number CRD42021284443.
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Affiliation(s)
- Min Song
- Clinical Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaodong Lin
- Fifth Clinical Medical School, Guangzhou University of Chinese Medicine, NO.60 Hengfu Road, Guangzhou, 510095, Guangdong, China
| | - Weichang Han
- Clinical Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingyi Li
- Clinical Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wengang Liu
- Fifth Clinical Medical School, Guangzhou University of Chinese Medicine, NO.60 Hengfu Road, Guangzhou, 510095, Guangdong, China.
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13
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Park D, Choi YH, Kang SH, Koh HS, In Y. Bone Marrow Aspirate Concentrate versus Human Umbilical Cord Blood-Derived Mesenchymal Stem Cells for Combined Cartilage Regeneration Procedure in Patients Undergoing High Tibial Osteotomy: A Systematic Review and Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:634. [PMID: 36984635 PMCID: PMC10059261 DOI: 10.3390/medicina59030634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/20/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
Background and objectives: Cartilage regeneration using mesenchymal stem cells (MSCs) has been attempted to improve articular cartilage regeneration in varus knee osteoarthritis (OA) patients undergoing high tibial osteotomy (HTO). Bone marrow aspirate concentrate (BMAC) and human umbilical cord blood-derived MSCs (hUCB-MSCs) have been reported to be effective. However, whether BMAC is superior to hUCB-MSCs remains unclear. This systematic review and meta-analysis aimed to determine the clinical efficacy of cartilage repair procedures with BMAC or hUCB-MSCs in patients undergoing HTO. Materials and Methods: A systematic search was conducted using three global databases, PubMed, EMBASE, and the Cochrane Library, for studies in which the clinical outcomes after BMAC or hUCB-MSCs were used in patients undergoing HTO for varus knee OA. Data extraction, quality control, and meta-analysis were performed. To compare the clinical efficacy of BMAC and hUCB-MSCs, reported clinical outcome assessments and second-look arthroscopic findings were analyzed using standardized mean differences (SMDs) with 95% confidence intervals (CIs). Results: The present review included seven studies of 499 patients who received either BMAC (BMAC group, n = 169) or hUCB-MSCs (hUCB-MSC group, n = 330). Improved clinical outcomes were found in both BMAC and hUCB-MSC groups; however, a significant difference was not observed between procedures (International Knee Documentation Committee score; p = 0.91, Western Ontario and McMaster Universities OA Index; p = 0.05, Knee Society Score (KSS) Pain; p = 0.85, KSS Function; p = 0.37). On second-look arthroscopy, the hUCB-MSC group showed better International Cartilage Repair Society Cartilage Repair Assessment grade compared with the BMAC group (p < 0.001). Conclusions: Both BMAC and hUCB-MSCs with HTO improved clinical outcomes in varus knee OA patients, and there was no difference in clinical outcomes between them. However, hUCB-MSCs were more effective in articular cartilage regeneration than BMAC augmentation.
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Affiliation(s)
- Dojoon Park
- Department of Orthopedic Surgery, St. Vincent Hospital, College of Medicine, 93, Jungbu-daero, Paldal-gu, Suwon-si 16247, Republic of Korea
| | - Youn Ho Choi
- Department of Orthopedic Surgery, St. Vincent Hospital, College of Medicine, 93, Jungbu-daero, Paldal-gu, Suwon-si 16247, Republic of Korea
| | - Se Hyun Kang
- Department of Orthopedic Surgery, St. Vincent Hospital, College of Medicine, 93, Jungbu-daero, Paldal-gu, Suwon-si 16247, Republic of Korea
| | - Hae Seok Koh
- Department of Orthopedic Surgery, St. Vincent Hospital, College of Medicine, 93, Jungbu-daero, Paldal-gu, Suwon-si 16247, Republic of Korea
| | - Yong In
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
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Iwasaki K, Ohkoshi Y, Hosokawa Y, Chida S, Ukishiro K, Kawakami K, Suzuki S, Maeda T, Onodera T, Kondo E, Iwasaki N. Higher Association of Pelvis-Knee-Ankle Angle Compared With Hip-Knee-Ankle Angle With Knee Adduction Moment and Patient-Reported Outcomes After High Tibial Osteotomy. Am J Sports Med 2023; 51:977-984. [PMID: 36786244 DOI: 10.1177/03635465221150513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
BACKGROUND High tibial osteotomy (HTO) reduces the load distribution of the medial compartment by modifying leg alignment. Knee adduction moment (KAM), a surrogate measure of dynamic loading in the knee joint, decreases after HTO. However, leg alignment does not fully account for KAM. PURPOSE To assess the association between the pelvis-knee-ankle angle (PKA), a novel radiographic parameter reflecting leg alignment and pelvic width, and KAM and patient-reported outcomes after HTO. STUDY DESIGN Cross sectional study; Level of evidence, 3. METHODS PKA is the angle between the line from the midpoint of the anterior superior iliac spine to the center of the knee joint and the mechanical axis of the tibia. In this study, 54 patients with medial compartment knee osteoarthritis and varus alignment who underwent 3-dimensional gait analysis preoperatively and 2 years after medial open-wedge HTO were evaluated. The primary outcomes were hip-knee-ankle angle (HKA), PKA, KAM peaks, and Knee Society Score (KSS). Single and multivariate regression analysis including PKA and KAM peaks as well as other demographic and radiologic factors was performed. RESULTS HKA was weakly correlated with the first peak KAM (r = -0.33; P < .01) and second peak KAM (r = -0.27; P = .01) before HTO, but not significantly correlated after HTO. PKA was moderately correlated with the first peak KAM (r = 0.45; P < .01) and second peak KAM (r = 0.45; P < .01) before HTO and with the first peak KAM (r = 0.51; P < .01) and second peak KAM (r = 0.56; P < .01) after HTO. Multivariate linear regression revealed that postoperative PKA was still associated with the KAM peaks after HTO. Only postoperative PKA was correlated with the KSS satisfaction subscale (r = -0.30; P = .03). CONCLUSION Although HKA was not correlated with KAM peaks after HTO, PKA was significantly correlated with KAM peaks in patients with varus knee osteoarthritis after HTO.
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Affiliation(s)
- Koji Iwasaki
- Department of Functional Reconstruction for the Knee Joint, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Yasumitsu Ohkoshi
- Department of Orthopedic Surgery, Hakodate Orthopedics Clinic, Hakodate, Japan
| | - Yoshiaki Hosokawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shuya Chida
- Department of Rehabilitation, Hakodate Orthopedics Clinic, Hakodate, Japan
| | - Kengo Ukishiro
- Department of Rehabilitation, Hakodate Orthopedics Clinic, Hakodate, Japan
| | - Kensaku Kawakami
- Department of Production Systems Engineering, National Institute of Technology, Hakodate College, Hakodate, Japan
| | - Sho'ji Suzuki
- Department of Complex and Intelligent Systems, Future University Hakodate, Hakodate, Japan
| | - Tatsunori Maeda
- Department of Orthopedic Surgery, Hakodate Orthopedics Clinic, Hakodate, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Eiji Kondo
- Centre for Sports Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Goodell PB, Johansen PM, Bartels DW, Sherman SL, Amanatullah DF. Comparing Unicompartmental Knee Arthroplasty and High Tibial Osteotomy for Isolated Medial Compartment Knee Osteoarthritis. JBJS Rev 2023; 11:01874474-202303000-00004. [PMID: 36930742 DOI: 10.2106/jbjs.rvw.22.00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
» Both unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO) allow for compartment-specific intervention on an arthritic knee joint that preserves bone stock and native soft tissue compared to a total knee arthroplasty (TKA). Both operations give a more natural feeling with native proprioception compared with a TKA. » HTO is better suited in patients who are younger (<55 years-of-age), have a body mass index (BMI) <30 kg/m2, high activity requirements, mechanical malalignment, asymmetric varus, isolated anterior cruciate ligament insufficiency, need for multiplanar correction, and a preference for joint preserving interventions. Recent data suggest that age (>55 years-of-age) should not solely contraindicate a HTO. » UKA may be chosen in patients who are older (>55 years-of-age), low activity requirements, have a BMI <40 kg/m2, severe osteoarthritis with significant joint space narrowing, acceptable coronal alignment, symmetric varus, and patient preference for arthroplasty.
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Affiliation(s)
- Parker B Goodell
- Department of Orthopaedic Surgery, University of California San Francisco, Fresno, California
| | - Phillip M Johansen
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, Florida
| | - Douglas W Bartels
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, California
| | - Seth L Sherman
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, California
| | - Derek F Amanatullah
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, California
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Guarino A, Farinelli L, Iacono V, Cozzolino A, Natali S, Zorzi C, Mariconda M. Long-Term Survival and Predictors of Failure of Opening Wedge High Tibial Osteotomy. Orthop Surg 2023; 15:1002-1007. [PMID: 36782306 PMCID: PMC10102285 DOI: 10.1111/os.13674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 02/15/2023] Open
Abstract
OBJECTIVE High tibial valgus osteotomy (HTO) is a widely accepted procedure indicated for varus knee with symptomatic osteoarthritis of the medial compartment. However, there is a lack of studies evaluating long term results of this procedure. The primary aim of this study was to evaluate the long-term survival of opening wedge high tibial osteotomy (HTO) for isolated osteoarthritis in the medial compartment of the knee. The secondary objective was to identify independent predictors of conversion to total knee arthroplasty (TKA). METHODS This is a long term retrospective study of 296 cases of open wedge HTOs performed at a single center (level of evidence IV) between January 2005 and August 2015. Opening wedge medial HTO was always performed after diagnostic arthroscopy. Eighty-three percent of the population (233 patients, 247 procedures) was followed up at a mean 11.6 years (6-17) by telephone interview, to evaluate the possible conversion to TKA. Mean age at the index operation was 42.8 years (range 15-70) and most patients were male (70%). Associated procedures (e.g., platelet rich plasma supplementation, microfractures, meniscectomy, etc.) were carried out at the time of the HTO in 80 (32%) cases. Survival of HTO and its association with age, sex, body mass index, smoking habit, preoperative severity of varus deformity, cartilage status at surgery, and associated procedures were evaluated. Kaplan-Meier and Cox regression analyses were performed. RESULTS Thirty-three of the 247 HTOs (13.4%) were converted to knee replacement, with 86.6% of the original procedures surviving at a mean 12-year follow-up. Kaplan-Meier survival estimates at 17 years for HTO were 75.5% (95% confidence interval [CI] 66.7-84.3). There was significant difference (P < 0.001) in the 17-year survival rate between obese (55.5%; 95% CI 35.3-75.6) and non-obese (79.7%; 95% CI 70.1-89.2) patients. The determinants of conversion to knee arthroplasty detected at multivariate Cox regression analysis were body mass index, severity of cartilage degeneration in the medial compartment (Outerbridge grade), and age. CONCLUSION The long-term survival of open wedge HTO for osteoarthritis in the medial compartment of the knee is satisfactory. The risk of conversion to TKA is significantly increased in obese patients. Advanced age and severity of pre-existing cartilage damage may also contribute to the risk of conversion to TKA.
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Affiliation(s)
- Amedeo Guarino
- Department of Public Health, Section of Orthopaedics, Federico II University, Naples, Italy
| | - Luca Farinelli
- Orthopaedic Clinic, Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Venanzio Iacono
- Department of Orthopaedic Surgery, IRCCS Sacro Cuore-Don Calabria in Negrar (VE), Negrar di Valpolicella VR, Italy
| | - Andrea Cozzolino
- Department of Public Health, Section of Orthopaedics, Federico II University, Naples, Italy
| | - Simone Natali
- Department of Orthopaedic Surgery, IRCCS Sacro Cuore-Don Calabria in Negrar (VE), Negrar di Valpolicella VR, Italy
| | - Claudio Zorzi
- Department of Orthopaedic Surgery, IRCCS Sacro Cuore-Don Calabria in Negrar (VE), Negrar di Valpolicella VR, Italy
| | - Massimo Mariconda
- Department of Public Health, Section of Orthopaedics, Federico II University, Naples, Italy
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Morita Y, Kuriyama S, Yamawaki Y, Nakamura S, Nishitani K, Ito H, Matsuda S. Opening-Wedge High Tibial Osteotomy With High Hinge Position Risks Lateral Hinge Fracture in Men With Posterolateral Tibial Condyle Protrusion. Arthroscopy 2023; 39:324-334. [PMID: 35961443 DOI: 10.1016/j.arthro.2022.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 07/04/2022] [Accepted: 07/13/2022] [Indexed: 02/02/2023]
Abstract
PURPOSE The primary aim of this study was to evaluate the 3-dimensional morphology of the proximal tibia around the osteotomy plane in open-wedge high tibial osteotomy, focusing on the posterolateral (PL) and posteromedial (PM) tibial condyles, and to clarify the changes in morphologic parameters due to differences in patient characteristics and hinge position. The secondary aim was to examine whether morphologic features were associated with insufficient osteotomy, which increases the risk of lateral hinge fracture (LHF). METHODS The PL and PM anteroposterior distance, asymmetry ratio, and discrepancy between PL and PM distances along the tibial osteotomy plane were measured. We investigated changes in the parameters due to differences in patient characteristics and hinge position. Osteotomy configurations and LHFs were evaluated using postoperative computed tomography scans. RESULTS The 3-dimensional preoperative plans of 117 knees (male, 41 knees; female, 76 knees) were evaluated. PL distances were larger than PM distances in almost all cases. The average asymmetry ratio was 1.35, and the standard deviation was 0.22. Higher hinge position was associated with a larger asymmetry ratio and discrepancy (P < .001). The asymmetry ratio and discrepancy were independently positively correlated with male sex (P = .002 and P = .001, respectively) and gentle posterior tibial slope (P < .001 and P < .001, respectively). Osteotomies with type III LHFs showed lower osteotomy sufficiency than osteotomies without LHFs (P < .001). CONCLUSIONS PL tibial condyle protrusion was more pronounced in male patients and those with a high hinge position, and may result in insufficient PL osteotomy, which is a risk factor for type III LHF during open-wedge high tibial osteotomy. The optimal hinge position was located approximately 15 mm and 20 mm distal to the lateral tibial plateau in female and male patients, respectively. LEVEL OF EVIDENCE IV: retrospective case series.
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Affiliation(s)
- Yugo Morita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto
| | - Shinichi Kuriyama
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto.
| | - Yusuke Yamawaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto
| | - Shinichiro Nakamura
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto
| | - Kohei Nishitani
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto
| | - Hiromu Ito
- Department of Orthopaedic Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto
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18
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Erard J, Schmidt A, Batailler C, Shatrov J, Servien E, Lustig S. Higher knee survivorship in young patients with monocompartmental osteoarthritis and constitutional deformity treated by high tibial osteotomy then total knee arthroplasty compared to an early total knee arthroplasty : a comparative study at a minimum follow-up of ten years. Bone Jt Open 2023; 4:62-71. [PMID: 36722347 PMCID: PMC10011927 DOI: 10.1302/2633-1462.42.bjo-2023-0002.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AIMS The use of high tibial osteotomy (HTO) to delay total knee arthroplasty (TKA) in young patients with osteoarthritis (OA) and constitutional deformity remains debated. The aim of this study was to compare the long-term outcomes of TKA after HTO compared to TKA without HTO, using the time from the index OA surgery as reference (HTO for the study group, TKA for the control group). METHODS This was a case-control study of consecutive patients receiving a posterior-stabilized TKA for OA between 1996 and 2010 with previous HTO. A total of 73 TKAs after HTO with minimum ten years' follow-up were included. Cases were matched with a TKA without previous HTO for age at the time of the HTO. All revisions were recorded. Kaplan-Meier survivorship analysis was performed using revision of metal component as the endpoint. The Knee Society Score, range of motion, and patient satisfaction were assessed. RESULTS Mean follow-up was 13 years (SD 3) after TKA in both groups. The 20-year Kaplan-Meier survival estimate was 98.6% in TKA post-HTO group (HTO as timing reference) and 81.4% in control group (TKA as timing reference) (p = 0.030). There was no significant difference in clinical outcomes, radiological outcomes, and complications at the last follow-up. CONCLUSION At the same delay from index surgery (HTO or TKA), a strategy of HTO followed by TKA had superior knee survivorship compared to early TKA at long term in young patients.Level of evidence: IIICite this article: Bone Jt Open 2023;4(2):62-71.
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Affiliation(s)
- Julien Erard
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Axel Schmidt
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Cecile Batailler
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,University Lyon, Claude Bernard Lyon 1 University, Lyon, France
| | - Jobe Shatrov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Sydney Orthopaedic Research Institute, University of Notre Dame Australia, Hornsby and Ku-Ring Hospital, Sydney, Australia
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,University Lyon, Claude Bernard Lyon 1 University, Lyon, France
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19
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Distalization of hinge site with use of hinge wire reduces hinge fracture rates in closing wedge distal femoral osteotomy. Knee Surg Sports Traumatol Arthrosc 2022:10.1007/s00167-022-07286-8. [PMID: 36562809 DOI: 10.1007/s00167-022-07286-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE Closing wedge distal femoral osteotomies (CWDFO) are attractive treatment options for unicompartmental knee osteoarthritis with coronal plane deformity. However, it has been traditionally associated with high rates of hinge fracture that can adversely impact recovery and patient outcomes. Appropriate siting of hinge point can be an effective method of reducing the incidence of hinge fractures. This study aims to illustrate a case series of CWDFO with low rates of hinge fracture utilising our preferred hinge point site. METHODS A retrospective study of a cohort of 39 CWDFO was performed between May 2019 and May 2022. Both medial and lateral CWDFO were included. The hinge point in all cases was placed at the level of the inferior margin of the metaphyseal flare, and inferior to the gastrocnemius origin, with a hinge thickness of 10 mm. Post-operative radiographs were obtained at 2, 4 and 8 weeks after surgery to assess for hinge fracture and union. RESULTS Thirty-nine cases of CWDFO were performed, consisting of eighteen cases of valgus malalignment that underwent medial CWDFO and twenty-one cases of varus malalignment that underwent lateral CWDFO. At surgery, the mean age was 47.6 (± 13.9) years and mean BMI was 29.4 (± 4.9). There were 23 men and 16 women. Three cases of hinge fractures occurred intraoperatively, translating into a hinge fracture rate of 7.69%. However, union was achieved in all three cases and all patients in this case series were able to progress to weight bear as tolerated at 2 months post-osteotomy. CONCLUSION Distal placement of the hinge at the level of the inferior metaphyseal flare margin with the use of a hinge wire can greatly reduce the rates of hinge fracture in CWDFO. LEVEL OF EVIDENCE Level III.
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20
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Park HS, Song JS, Kim EK. Effects of low-intensity resistance exercise with blood flow restriction after high tibial osteotomy in middle-aged women. Medicine (Baltimore) 2022; 101:e32294. [PMID: 36595769 PMCID: PMC9794348 DOI: 10.1097/md.0000000000032294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND High tibial osteotomy (HTO) is an effective surgical method for treating medial compartment osteoarthritis. However, in most cases after surgery, muscle strength is decreased, and rapid muscle atrophy is observed. Therefore, the purpose of this study is to verify the effects of low-intensity resistance exercise (LIE) with blood flow restriction (BFR) on the cross-sectional area (CSA) of thigh muscles, knee extensor strength, pain, and knee joint function and investigate proper arterial occlusion pressure (AOP) in middle-aged women who underwent HTO. METHOD This study was designed as a prospective randomized controlled trial. Forty-two middle-aged women who underwent HTO were randomly divided into three groups and participated in LIE with (40% or 80% AOP applied) or without BFR. The main outcome was the measurement of the CSA of thigh muscles (at 30% and 50% distal length of the femur) before and 12 weeks after treatment. Additionally, knee extension muscle strength, pain, and joint function were evaluated before and 6 and 12 weeks after treatment. RESULTS CSA of thigh muscles at 30% and 50% distal length of the femur decreased in the AOP 40% and control groups and was the largest in the AOP 80% group 12 weeks after treatment. Knee extension strength increased in all groups and was the highest in the AOP 80% group 6 and 12 weeks after treatment. Pain improved in all groups, with no intergroup differences. Knee joint function improved in all groups and was superior in the 80% AOP group 12 weeks after treatment. CONCLUSION LIE with BFR at 80% AOP was effective in preventing atrophy of the thigh muscle, increasing muscle strength, and improving function. BFR at 40% AOP had no difference in the results when compared with the group in which BFR was not applied. Therefore, LIE with an AOP of 80% is recommended for patients undergoing HTO.
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Affiliation(s)
- Han-Soo Park
- Korean National Sports University, Songpa-gu, Seoul, Republic of Korea
| | - Jun-Seob Song
- Gangnam JS Hospital, Gangnam-gu, Seoul, Republic of Korea
| | - Eun-Kuk Kim
- SRC Hospital, Chowol-eup, Gwangju-si, Gyeonggi-do, Republic of Korea
- * Correspondence: Eun-Kuk Kim, SRC Hospital, 25, Gyeongsu-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, Republic of Korea (e-mail: )
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21
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Batailler C, Gicquel T, Bouguennec N, Steltzlen C, Tardy N, Cartier JL, Mertl P, Pailhé R, Rochcongar G, Fayard JM. A predictive score of high tibial osteotomy survivorship to help in surgical decision-making: the SKOOP score. Arch Orthop Trauma Surg 2022:10.1007/s00402-022-04694-w. [PMID: 36418609 DOI: 10.1007/s00402-022-04694-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 11/02/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The high tibial osteotomy (HTO) survival rate is strongly correlated with surgical indications and predictive factors. This study aims to assess HTO survival in the long term, to determine the main predictive factors of this survival, to propose a predictive score for HTO based on those factors. METHODS This multicentric study included 481 HTO between 2004 and 2015. The inclusion criteria were all primary HTO in patients 70 years old and younger, without previous anterior cruciate ligament injury, and without the limitation of body mass index (BMI). The assessed data were preoperative clinical and radiological parameters, the surgical technique, the complications, the HKA (hip knee ankle angle) correction postoperatively, and the surgical revision at the last follow-up. RESULTS The mean follow-up was 7.8 ± 2.9 years. The HTO survival was 93.1% at 5 years and 74.1% at 10 years. Age < 55, female sex, BMI < 25 kg/m2 and incomplete narrowing were preoperative factors that positively impacted HTO survival. A postoperative HKA angle greater than 180° was a positive factor for HTO survival. The SKOOP (Sfa Knee OsteOtomy Predictive) score, including age (threshold value of 55 years), BMI (threshold values of 25 and 35 kg/m2), and the presence or absence of complete joint line narrowing, have been described. If the scale was greater than 3, the survival probability was significantly lower (p < 0.001) than if the scale was less than 3. CONCLUSION A predictive score including age, BMI, and the presence or absence of joint line narrowing can be a helpful in making decisions about HTO, particularly in borderline cases. LEVEL OF EVIDENCE Retrospective cohort study.
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Affiliation(s)
- Cécile Batailler
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France. .,IFSTTAR, Univ Lyon, Claude Bernard Lyon 1 University, LBMC UMR_T9406, F69622, Lyon, France.
| | - Thomas Gicquel
- Clinique Mutualiste de La Porte de L'Orient, 3, Rue Robert de La Croix, 56100, Lorient, France
| | - Nicolas Bouguennec
- Clinique du Sport de Bordeaux-Mérignac, 2, Rue Georges-Nègrevergne, 33700, Mérignac, France
| | - Camille Steltzlen
- Service de Chirurgie Orthopédique, Hôpital Mignot, 177, Rue de Versailles, 78150, Le Chesnay, France
| | - Nicolas Tardy
- Centre Ostéo-Articulaire Des Cèdres, Clinique Des Cèdres, 5, Rue Des Tropiques, 38130, Echirolles, France
| | - Jean-Loup Cartier
- , Clinique Des Alpes Du Sud, 3, Rue Antonin Coronat, 05000, Gap, France
| | - Patrice Mertl
- Service de Chirurgie Orthopédique, CHU Amiens-Picardie Site Sud, 1, Rond-Point du Professeur Christian-Cabrol, 80054, Amiens Cedex 1, France
| | - Régis Pailhé
- Service de Chirurgie de L'Arthrose Et du Sport, Urgences Traumatiques Des Membres, Hôpital Sud - CHU de Grenoble, Laboratoire TIMC-GMCAO UMR 5525 UGA/CNRS, 38000, Grenoble, France
| | - Goulven Rochcongar
- Département de Chirurgie Orthopédique et Traumatologique, Unité Inserm COMETE, UMR U1075, CHU de Caen, avenue de la Côte de Nacre, 14033, Caen, France
| | - Jean Marie Fayard
- Centre Orthopédique Santy-Hopital Privé Jean Mermoz-Ramsay Générale de Santé, 69008, Lyon, France
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22
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Effect of the sagittal osteotomy inclination angle on the posterior tibial slope change in high tibial osteotomy: three-dimensional simulation study. Sci Rep 2022; 12:19254. [PMID: 36357467 PMCID: PMC9649806 DOI: 10.1038/s41598-022-23412-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 10/31/2022] [Indexed: 11/12/2022] Open
Abstract
In performing medial open-wedge high tibial osteotomy, it is recommended not to alter the posterior tibial slope. However, it remains unclear whether the osteotomy inclination angle affects the posterior tibial slope in the sagittal plane. This study aimed to verify how anterior or posterior osteotomy inclination angle affects the tendency of change in the posterior tibial slope and to conduct quantitative analysis of the extent to which the posterior tibial slope changes according to the degree of the osteotomy inclination angle change in MOWHTO. Computed tomography images of 30 patients who underwent MOWHTO were collected. Three-dimensional models of preoperative original tibia were reconstructed, and virtual osteotomies were performed. The sagittal osteotomy inclination angles formed by the osteotomy line and the medial tibial plateau line were classified as positive in case of anteriorly inclined osteotomy and negative in case of posteriorly inclined osteotomy. Thirteen osteotomies were performed for each tibial model at intervals of 5° from - 30° to 30°. The posterior tibial slope was assessed, and the proportional relationship between the sagittal osteotomy inclination angle and the posterior tibial slope change was analyzed. The posterior tibial slope changed significantly after osteotomy (p < 0.001), except for the cases where the sagittal osteotomy inclination angles were 5°, 0°, and - 5°. Anteriorly and posteriorly inclined osteotomy caused increase and decrease in the posterior tibial slope, respectively. As the inclination angle increased by 1°, the posterior tibial slope increased by 0.079° in anterior inclination osteotomy, while in posterior inclination osteotomy, as the inclination angle decreased by 1°, the posterior tibial slope decreased by 0.067°. The osteotomy inclination angle in the sagittal plane significantly affected the posterior tibial slope. When there was an inclination angle occurred between the osteotomy line and the medial tibial plateau line in the sagittal plane, the posterior tibial slope changed after MOWHTO. The posterior tibial slope tended to increase in anteriorly inclined osteotomy and decrease in posteriorly inclined osteotomy. The change in the posterior tibial slope was proportionally related to the absolute value of the osteotomy inclination angle.
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23
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Ping H, Wen J, Liu Y, Li H, Wang X, Kong X, Chai W. Unicompartmental knee arthroplasty is associated with lower pain levels but inferior range of motion, compared with high tibial osteotomy: a systematic overview of meta-analyses. J Orthop Surg Res 2022; 17:425. [PMID: 36153554 PMCID: PMC9509560 DOI: 10.1186/s13018-022-03319-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/04/2022] [Indexed: 11/10/2022] Open
Abstract
Background The purpose of this study was to overview the findings of reported meta-analyses on unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO). Methods The Preferred Reporting Items for Systematic Reviews and Meta-Analysis 2020 (PRISMA 2020) guidelines were followed. Two independent reviewers conducted a literature search of PubMed, Embase, the Web of Science, and the Cochrane Database of Systematic Reviews for meta-analyses comparing UKA and HTO that were published prior to September 2021. Literature screening, data extraction, and article quality appraisal were performed according to the study protocol registered online at PROSPERO (CRD42021279152). Results A total of 10 meta-analyses were identified, and different studies reported different results. Five of the seven meta-analyses showed that the proportion of subjects with excellent or good functional results was higher for UKA than for HTO. All three meta-analyses showed that UKA was associated with lower pain levels, and all six of the studies that included an analysis of range of motion (ROM) reported that UKA was inferior to HTO. Four of the eight meta-analyses found that total complication rates were lower for UKA. Only 3 of the 10 meta-analyses found that UKA had lower revision rates. Moreover, in the subgroup analysis, the revision and complication rates of UKA were similar to those of opening-wedge HTO but much lower than those of closing-wedge HTO. Conclusions Compared to HTO, UKA was associated with lower pain levels but inferior postoperative ROM. The results were inconclusive regarding whether UKA yielded better knee function scores and lower revision or complication rates than HTO. Accurate identification of indications and appropriate patient selection are essential for treating individuals with OA. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-022-03319-7.
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24
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Cazor A, Schmidt A, Shatrov J, Alqahtani T, Neyret P, Sappey-Marinier E, Batailler C, Lustig S, Servien E. Less risk of conversion to total knee arthroplasty without significant clinical and survivorship difference for opening-wedge high tibial osteotomies in varus knee deformities at 10-year minimum follow-up compared to closing-wedge high tibial osteotomies. Knee Surg Sports Traumatol Arthrosc 2022; 31:1603-1613. [PMID: 36038667 DOI: 10.1007/s00167-022-07122-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 08/10/2022] [Indexed: 10/15/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the clinical outcomes and survivorship at minimum 10-year follow-up of patients undergoing primary valgisation high tibial osteotomy (HTO) for medial osteoarthritis (OA), treated by Opening-Wedge HTO (OW-HTO) or Closing-Wedge HTO (CW-HTO). METHODS This was a retrospective cohort study of consecutive patients presenting to a single institution undergoing HTO for isolated medial compartment OA. Two hundred and twenty three HTOs for isolated medial tibio-femoral OA were performed between January 2002 and December 2010. Patients were eligible if they had minimum 10-year follow-up and received either a CW or OW-HTO. Fifteen (6.7%) patients died and twenty-five (11.2%) were lost to follow-up. One hundred and eighty three (82.1%) patients were included in the final analysis and divided into two groups: OW-HTO (96/183; 52.4%) and CW-HTO (87/183; 47.6%). Range of motion, KSS, KOOS scores, and conversion to TKA rate were analyzed between groups. Both groups were comparable regarding age, arthrosis stage, gender, ASA score and BMI at the time of HTO. Survival analysis was conducted with re-intervention for TKA as the end point. RESULTS At the time of HTO, mean age was 55 years ± 7.9 (27-73.9) with 72.7% of patients being male. The mean follow-up was 13.3 years ± 2.7 (10-19). Sixty-four (34.9%) patients underwent TKA at a mean delay of 9.3 years ± 3 (3-16). The conversion to TKA rate was significantly higher in the CW-HTO group versus the OW-HTO group: 42.5% (37/87) versus 28.1% (27/96) (p = 0.04). The survival at 15-year follow-up was 59.2% in the OW-HTO group versus 54.6% in the CW-HTO group (n.s.). At 13-year follow-up, KSS Function score was significantly better in the OW-HTO (90.9 versus 82.4; p = 0.007). No significant difference was observed between the two groups regarding the KOOS score, KSS Knee Score and complication rate. CONCLUSION At mean follow-up of 13 years, no significant clinical and survivorship difference was observed between the two groups. The conversion to TKA was significantly lower following OW-HTO. Minor correction was associated with risk of requiring subsequent TKA. LEVEL OF EVIDENCE Retrospective case series, IV.
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Affiliation(s)
- A Cazor
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France
| | - A Schmidt
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France.
| | - J Shatrov
- Sydney Orthopaedic Research Institute, Chatswood, Sydney, Australia.,University of Notre Dame Australia Orthopaedic Research Institute, Sydney, Australia.,Hornsby and Ku-Ring Hospital, Sydney, Australia
| | - T Alqahtani
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France
| | - P Neyret
- Infirmerie Protestante, 3 rue Penthod, 69300, Lyon, France
| | - Elliot Sappey-Marinier
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France
| | - C Batailler
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France
| | - S Lustig
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France.,IFSTTAR, LBMC UMR_T9406, Univ Lyon, Claude Bernard Lyon 1 University, 25 Avenue François Mitterand, Lyon, France
| | - E Servien
- FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Hospices Civils de Lyon, 103 grande rue de la croix rousse, 69004, Lyon, France.,LIBM-EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, 29 Boulevard du 11 Novembre 1918, Lyon, France
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25
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Lee SS, Lee YK, Kim IS, Ryu DJ, Jung EY, Lee DK, Wang JH. Preoperative Medial Tightness and Narrow Medial Joint Space Are Predictive Factors for Lower Extremity Alignment Change Toward Varus After Opening-Wedge High Tibial Osteotomy. Orthop J Sports Med 2022; 10:23259671221119152. [PMID: 36062158 PMCID: PMC9434689 DOI: 10.1177/23259671221119152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/06/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Time-dependent changes in lower extremity alignment after an opening-wedge
high tibial osteotomy (OWHTO) have been poorly investigated. Moreover, few
studies have investigated risk factors of postoperative alignment
change. Purposes: To investigate time-dependent alignment changes and identify predictive
factors for postoperative alignment change after OWHTO. Study Design: Case-control study; Level of evidence, 3. Methods: This study included patients who underwent OWHTO between March 2010 and
September 2018. A total of 142 knees with a mean follow-up of 42 months were
included and classified as the change group when the amount of
hip-knee-ankle (HKA) angle change was >1°; if otherwise, then as the
no-change group. HKA angle was obtained at 6 time points: preoperatively and
at 3 months, 6 months, 1 year, 2 years, and final follow-up postoperatively.
Multiple regression analysis was performed to identify the factors that were
correlated with the changes in the HKA angle from 3 months to the final
follow-up. Results: Among the 142 knees, 59 (42%) were included in the change group. The overall
postoperative HKA angles progressed serially toward varus after OWHTO. The
mean angles of the 6 time points were 8.5°, –3.7°, –3.6°, –3.3°, –3.1°, and
–2.7°, respectively. The mean HKA angles of the change and no-change groups
were 9.1°, –4.3°, –3.4°, –2.8°, –2.0°, and –1.4° and 8.1°, –3.3°, –3.8°,
–3.6°, –3.8°, and –3.7°, respectively. Greater change in the HKA angle was
predicted by preoperatively greater valgus stress joint line convergence
angles and less medial joint space width. Conclusion: Of the cases of OWHTO, 42% showed correction loss of >1° at a mean
follow-up of 42 months. The overall postoperative HKA angles progressed
serially to varus angles after OWHTO. Preoperative greater valgus stress
joint line convergence angles and less medial joint space width were
predictive factors for greater change in alignment toward varus after
OWHTO.
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Affiliation(s)
- Sung-Sahn Lee
- Department of Orthopaedic Surgery, Ilsan Paik Hospital, Inje University School of Medicine, Goyangsi, Gyeonggido, Republic of Korea
| | - Young Keun Lee
- Department of Orthopaedic Surgery, Armed Forces Yangju Hospital, Yangjusi, Gyeonggido, Republic of Korea
| | - Il Su Kim
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Dong Jin Ryu
- Department of Orthopaedic Surgery, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea
| | - Eui Yub Jung
- Department of Orthopaedic Surgery, National Medical Center, Seoul, Republic of Korea
| | - Do Kyung Lee
- Department of Orthopaedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Joon Ho Wang
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Department of Health Sciences and Technology and Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
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26
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Huang L, Xu Y, Wei L, Yuan G, Chen W, Gao S, Liu W, Tan Z, Zhao J. Unicompartmental knee arthroplasty is superior to high tibial osteotomy for the treatment of medial unicompartmental osteoarthritis: A systematic review and meta-analysis. Medicine (Baltimore) 2022; 101:e29576. [PMID: 35905249 PMCID: PMC9333480 DOI: 10.1097/md.0000000000029576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO) are widely used for the treatment of medial unicompartmental knee osteoarthritis (OA). However, the best approach remains controversial. This study aimed to present a systematic review and a meta-analysis to directly compare the clinical outcomes between HTO and UKA. We hypothesized that the clinical outcomes after UKA and HTO would be similar. METHODS Electronic databases (Web of Science, PubMed, Embase, CENTRAL, and Biosis Preview) were searched for related studies published before November 30, 2021. Retrospective and prospective studies that directly compared the postoperative outcomes between UKA and HTO were included. Odds ratio (ORs) and 95% confidence interval (CIs) for complications, revision to total knee arthroplasty (TKA), and weighted mean difference (MD) and 95% CIs in range of motion (ROM), pain, walking speed and function score were evaluated. Two reviewers independently assessed the quality of the studies. Subgroup and sensitivity analyses were performed to explore the heterogeneity. RESULTS Twenty-three retrospective and 6 prospective studies were included. A total of 3004 patients (3084 knees) were evaluated for comparison. Complications (OR, 4.88, 95% CI: 2.92-6.86) were significantly greater in the HTO group than in the UKA group. Postoperative function scores including Lysholm score (MD, -2.78, 95% CI: -5.37 to -0.18) and Hospital for Special Surgery (HSS) score (MD, -2.80, 95% CI: -5.39 to -0.20) were significantly lower in the HTO group than the UKA group. The postoperative ROM was similar between HTO and mobile-bearing UKA (MD, -3.78, 95% CI: -15.78 to 8.22). However, no significant differences were observed between the HTO and UKA group in terms of postoperative pain, walking speed, and revision to TKA. CONCLUSIONS UKA is superior to HTO in minimizing complications and enhancing postoperative function scores. Mobile-bearing UKA has a similar ROM compared with HTO. Both HTO and UKA provide satisfactory clinical outcomes in terms of walking speed, relieving pain, and revision to TKA. UKA appears to be more suitable for the elderly, and both mobile-bearing UKA and HTO are viable surgical options for younger active individuals.
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Affiliation(s)
- Linke Huang
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
- Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Yinglong Xu
- Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
- Department of Orthopaedics, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Linhua Wei
- Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
- The Affiliated Nanning Infectious Disease Hospital of Guangxi Medical University, The Fourth People’s Hospital of Nanning, Nanning, GuangxiChina
| | - Guangzhi Yuan
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Weiwei Chen
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, GuangxiChina
| | - Shiyao Gao
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Wei Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Zhen Tan
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
| | - Jinmin Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, GuangxiChina
- * Correspondence: Jinmin Zhao MD, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi, China (e-mail: )
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27
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Seth I, Bulloch G, Seth N, Gibson D, Rastogi A, Lower K, Rodwell A, Bruce W. High Tibial Osteotomy Versus Unicompartmental Knee Arthroplasty for Unicompartmental Knee Osteoarthritis: A Systematic Review and Meta-Analysis. Indian J Orthop 2022; 56:973-982. [PMID: 35669023 PMCID: PMC9123137 DOI: 10.1007/s43465-022-00620-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 02/28/2022] [Indexed: 02/04/2023]
Abstract
Purpose High tibial osteotomy (HTO) and unicompartmental knee arthroplasty (UKA) are commonly performed procedures for the treatment of compartmental knee osteoarthritis; however, the optimal procedure remains controversial. We conducted this systematic review and meta-analysis to compare the functional outcomes and assess complications and revision rates between the two techniques. Methods We searched electronic databases for relevant studies comparing HTO versus UKA for unicompartmental knee osteoarthritis. Continuous data as visual analogue scale (VAS), range of motion, and free walking speed were pooled as mean differences (MDs). Dichotomous data as functional knee outcomes, complications, and revision were pooled as odds ratios (ORs), with 95% confidence interval (CI), using R software for windows. Results Twenty-five studies involving 8185 patients were included. Meta-analysis showed that HTO was associated with higher risk of complications (OR = 2.47, 95% CI [1.52, 4.04]), poorer functional results (excellent/good) (OR = 0.32, 95% CI [0.21, 0.49]), and greater range of motion (MD = 7.05, 95% CI [2.41, 11.68]) compared to UKA. No significant differences were found between the compared groups in terms of VAS (MD = 0.14, 95% CI [- 0.08, 0.36]), revision rates (OR = 1.30, 95% CI [0.65, 2.60]), and free walking speed (MD = - 0.05, 95% CI [- 0.11, 0.00]). Conclusion This study showed that UKA achieved fewer complications, better functional outcomes, and less range of motion compared to HTO. No significant differences were detected between HTO and UKA in terms of VAS and revision rate. Treatment options should be personalized to each patient considering factors such as their age, activities of daily living, their body mass index, and severity of osteoarthritis. Level of evidence II. Supplementary Information The online version contains supplementary material available at 10.1007/s43465-022-00620-9.
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Affiliation(s)
- Ishith Seth
- grid.417154.20000 0000 9781 7439Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500 Australia
- Department of Surgery, Bendigo Base Hospital, 100 Barnard Street, Bendigo, VIC 3550 Australia
| | - Gabriella Bulloch
- grid.1623.60000 0004 0432 511XDepartment of Orthopaedic Surgery, The Alfred Hospital, Melbourne, VIC 3004 Australia
| | - Nimish Seth
- grid.1008.90000 0001 2179 088XFaculty of Science, Medicine and Health, University of Melbourne, Melbourne, VIC 3010 Australia
| | - Damien Gibson
- grid.417154.20000 0000 9781 7439Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500 Australia
| | - Anish Rastogi
- grid.417154.20000 0000 9781 7439Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500 Australia
| | - Kirk Lower
- grid.417154.20000 0000 9781 7439Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500 Australia
| | - Aaron Rodwell
- grid.417154.20000 0000 9781 7439Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500 Australia
| | - Warwick Bruce
- grid.414685.a0000 0004 0392 3935Sydney Local Health District, Concord Repatriation General Hospital, Concord, NSW 2139 Australia
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Ma XL, Hu YC, Wang KZ. Chinese Clinical Practice Guidelines in Treating Knee Osteoarthritis by Periarticular Knee Osteotomy. Orthop Surg 2022; 14:789-806. [PMID: 35509153 PMCID: PMC9087466 DOI: 10.1111/os.13281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/09/2022] [Accepted: 03/21/2022] [Indexed: 12/25/2022] Open
Abstract
Unicompartmental knee osteoarthritis (UKOA) is the early stage of knee joint degeneration, which is characterized by unicompartmental degeneration and mostly occurs in medial compartment. Pain and limited motion are main symptoms, which affect patients' life quality. Periarticular knee osteotomy (PKO) for lower extremity alignment correction is an effective treatment for UKOA with abnormal alignment, which could relieve pain and improve joint function by adjusting lower extremity alignment. At present, no clinical guidelines are available for the treatment of UKOA by PKO for lower extremity alignment correction. Experts from the Clinical New Technology Application Committee of the Chinese Hospital Association, Joint Surgery Study Group of the Chinese Orthopaedic Association of the Chinese Medical Association, and Osteoarthritis Study Group of the Chinese Association of Orthopaedic Surgeons of the Chinese Medical Doctor Association formulated these guidelines. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) grading system and the Reporting Items for Practice Guidelines in Healthcare (RIGHT) were adopted to select 25 most concerning questions. Finally, 25 recommendations were formulated through evidence retrieval, evidence quality evaluation, and the determination of directions and strength of recommendations. Recommendation items 1–5 are indications and contraindications for PKO for lower extremity alignment correction, items 6–21 are surgical methods and principles, item 22 describes 3D printing corrective osteotomy technique, and items 23–25 address the perioperative period, follow‐up management, and other content. These guidelines are designed to improve the normalization and standardization of KOA treatment by PKO for lower extremity alignment correction.
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Affiliation(s)
- Xin-Long Ma
- Department of Orthopaedics, Tianjin Hospital, Tianjin, China
| | - Yong-Cheng Hu
- Department of Orthopaedics, Tianjin Hospital, Tianjin, China
| | - Kun-Zheng Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi, China
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Siboni R, Vialla T, Joseph E, LiArno S, Faizan A, Martz P, Ollivier M. Coronal and sagittal alignment of the lower limb in Caucasians: Analysis of a 3D CT database. Orthop Traumatol Surg Res 2022; 108:103251. [PMID: 35183757 DOI: 10.1016/j.otsr.2022.103251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/26/2021] [Accepted: 08/05/2021] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Lower limb alignment is a major determinant of long-term outcomes after osteotomy or total knee replacement. The aim of this paper is to define the mean values of coronal and sagittal lower limb alignment for Caucasians as a function of sex using 3D reconstructions from CT-scans. MATERIALS AND METHODS The analysis involved 586 Caucasian patients (269 males and 317 females) who had their hip-knee-ankle angle (HKA), lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), posterior proximal tibial angle (PPTA), lateral and medial proximal posterior tibial angles (LPPTA/MPPTA), posterior distal femoral angle (PDFA), and non-weightbearing joint convergence angle (nwJLCA) measured. This analysis was performed using a CT-scan-based modelling system (SOMA). Differences between sexes and morphotypes (neutral, varus and valgus) were analyzed statistically. RESULTS The mean HKA was 180±2.57°, LDFA 86.1±1.87°, MPTA 86.1±2.15°, PPTA 84.6±2.58°, LPPTA 84.9±3.17°, MPPTA 85.1±3.21°, PDFA 85.3±1.50° and nwJLCA 0.82±1.32°. There was a significant difference between sexes for the HKA (180.3±2.46° and 179.0±2.52°), LDFA (85.6±1.90° and 86.8±1.61°), MPPTA (84.7±3.06° and 85. 6±3.31°). The neutral morphotype was more frequent in women than men (78% vs. 73%), the varus morphotype was more frequent in men than women (20% vs. 7.6%) and the valgus morphotype was more frequent in women than men (15% vs. 6.7%). CONCLUSION Normal parameters for lower limb alignment in Caucasian patients were described in the coronal and sagittal planes. There was a significant influence of sex in the coronal plane, which was not found in the sagittal plane. LEVEL OF EVIDENCE IV; retrospective cohort study.
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Affiliation(s)
- Renaud Siboni
- Department of Orthopedics and Traumatology, CHU of Reims, 51100 Reims, France.
| | - Tristan Vialla
- Department of Orthopedics and Traumatology, CHU of Reims, 51100 Reims, France
| | - Etienne Joseph
- Department of Orthopedics and Traumatology, CHU of Reims, 51100 Reims, France
| | | | | | - Pierre Martz
- Department of Orthopedics and Traumatology, CHU of Dijon, 21100 Dijon, France
| | - Matthieu Ollivier
- Department of Orthopedics and Traumatology, APHM, CNRS, ISM, Institute for Locomotion, Aix Marseille University, Sainte-Marguerite Hospital, Marseille, France; Department of Orthopedics and Traumatology, Institute of Movement and Locomotion, Saint-Marguerite Hospital, 270, boulevard Sainte-Marguerite, BP 29, 13274 Marseille, France
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30
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Hiramatsu K, Yamada Y, Nakamura N, Mitsuoka T. Factors Associated with Postoperative Knee Joint Line Obliquity After Medial Open Wedge High Tibial Osteotomy. Am J Sports Med 2022; 50:1651-1658. [PMID: 35293800 DOI: 10.1177/03635465221079343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND There are still few reports on factors associated with postoperative knee joint line obliquity (KJLO). PURPOSE The purpose was to determine preoperative radiographic factors that are associated with KJLO postoperatively after open wedge high tibial osteotomy (OWHTO) using multivariable linear regression analysis and multivariable logistic regression analysis. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS A total of 60 patients with 65 varus knees who underwent OWHTO between December 2012 and June 2018 at a single institution were retrospectively enrolled in this study. The authors evaluated radiologic parameters including the weightbearing line ratio, femorotibial angle, medial proximal tibial angle, mechanical lateral distal femoral angle (LDFA), lateral distal tibial angle, joint line convergence angle (JLCA), KJLO, and ankle joint obliquity. They also categorized these radiographic parameters as preoperative and postoperative and calculated the difference (Δ) between preoperative and postoperative values. To determine which of the radiographic parameters were most associated with postoperative KJLO, multivariable linear regression analysis was performed using the stepwise method. Multivariable logistic regression analysis was used to examine the relative contribution of the preoperative radiographic parameters to an abnormal postoperative KJLO (>4°). RESULTS In the multivariable linear regression analysis, the preoperative LDFA and JLCA showed a statistically significant correlation. Multivariable logistic regression analysis revealed that the mean preoperative LDFA was significantly larger in the group with abnormal KJLO than in the group with the control group (odds ratio, 1.84; 95% CI, 1.12-3.02; P = .02), while preoperative JLCA tended to be larger in the abnormal KJLO group than the control group but not statistically significantly different. CONCLUSION KJLO after OWHTO was associated with preoperative LDFA and JLCA in multivariable linear regression analysis, and preoperative LDFA was the most important factor associated with abnormal KJLO after OWHTO in multivariable logistic regression analysis.
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Affiliation(s)
- Kunihiko Hiramatsu
- Department of Orthopaedic Surgery, Tamai Hospital, Osaka, Japan.,Department of Orthopaedic Surgery, Yao Municipal Hospital, Osaka, Japan
| | - Yuzo Yamada
- Department of Orthopaedic Surgery, Yao Municipal Hospital, Osaka, Japan
| | - Norimasa Nakamura
- Institute for Medical Science in Sports, Osaka Health Science University, Osaka, Japan
| | - Tomoki Mitsuoka
- Department of Orthopaedic Surgery, Yao Municipal Hospital, Osaka, Japan
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31
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Saragaglia D, Horteur C, Refaie R. "One millimetre equals one degree": a simple way to achieve in 92% of cases the desired correction after opening proximal tibial osteotomy for genu varum. Arch Orthop Trauma Surg 2022; 143:2395-2400. [PMID: 35488920 DOI: 10.1007/s00402-022-04458-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/15/2022] [Indexed: 11/02/2022]
Abstract
INTRODUCTION When performing a high tibial osteotomy (HTO) for genu varum deformity, it is not always easy to obtain the correct amount of overcorrection. The aims of this study were to review the results of a simple and reproducible method of correction that we have called "1 mm equals 1°". We have applied this technique to the medial opening wedge osteotomy. Our hypothesis was that one degree of correction corresponded with one degree of opening. METHODS 97 proximal medial opening wedge osteotomies were measured intraoperatively with a navigation system and at 3 months with long-leg X-rays. The hip-knee-ankle (HKA) angle preoperatively was on average 173.8 ± 2.3° (170°-177°). In most cases, an opening of 4° greater than the initial varus was performed using our formula that one degree varus was equal to 1 mm of opening. In other words, when the varus was 6°, an opening of 10 mm was performed. The void left by the opening wedge was filled with a calcium triphosphate wedge and the construct fixed and held with a locking plate. RESULTS Aiming for a knee axis of 184 ± 2°, which corresponds to 2°-6° of overcorrection, we obtained the following results: HKA intraoperatively measured angle with navigation was on average 183.5 ± 0.9° (182°-184°) and HKA radiologically postoperatively angle was 182.5° ± 1.6° (179°-189°). We therefore achieved the desired overcorrection of 2°-6° in 92% of cases based on our postoperative radiographs and in 100% cases based on intraoperative measurements with computer navigation. CONCLUSION The method of "1 mm equals 1°" is a simple, reliable, and reproducible method to achieve in 92% of cases the desired overcorrection (i.e., 184 ± 2°) with valgising proximal medial opening wedge osteotomy in genu varum.
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Affiliation(s)
- Dominique Saragaglia
- Faculty of Medicine, University Grenoble-Alpes, 23 Av. Des Maquis du Grésivaudan, 38700, La Tronche, France. .,, 3 Allée du Joanny, 38640, Claix, France.
| | - C Horteur
- CHU Grenoble-Alpes, South Teaching Hospital, Kimberley avenue, 38130, Echirolles, France
| | - R Refaie
- Department of Trauma and Orthopaedics, South Tees NHS Foundation Trust, Middlesbrough, UK
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Polce EM, Vadhera AS, Williams BT, Maheshwer B, O’Donnell R, Yanke AB, Forsythe B, Cole BJ, Chahla J. Preoperative Symptom Duration Does Not Affect Clinical Outcomes after High Tibial Osteotomy at a Minimum of 2-Year Follow-Up. J ISAKOS 2022; 7:60-65. [DOI: 10.1016/j.jisako.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/05/2022] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
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Radhakrishnan GT, Magan A, Kayani B, Asokan A, Ronca F, Haddad FS. Return to Sport After Unicompartmental Knee Arthroplasty: A Systematic Review and Meta-analysis. Orthop J Sports Med 2022; 10:23259671221079285. [PMID: 35321207 PMCID: PMC8935568 DOI: 10.1177/23259671221079285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/08/2021] [Indexed: 01/13/2023] Open
Abstract
Background: Patients undergoing unicompartmental knee arthroplasty (UKA) often want to return to sport (RTS) after surgery. However, the time taken to RTS and proportion of patients who RTS after UKA remain unknown. Purpose: To determine the time to RTS and proportion of patients who RTS after UKA. Study Design: Systematic review; Level of evidence, 4. Methods: A search was performed using PubMed, Medline, Embase, SPORTDiscus and the Cochrane Library databases for clinical trials reporting on RTS after UKA published between database inception and September 2021. In addition, a manual search was performed of relevant sports medicine and orthopaedic journals, and bibliographies were reviewed for eligible trials. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines were used to undertake this study. Results: This meta-analysis included 11 studies (749 patients) that reported on RTS after UKA. The proportion of patients returning to sports increased over time: 6 studies (432 patients) demonstrated an overall pooled proportion of 48.1% (95% CI, 36.3%-60.2%) of patients who returned to sport at 3 months after surgery, while 7 studies (443 patients) demonstrated an overall pooled proportion of 76.5% (95% CI, 63.9%-87.1%) of patients who returned to sport at 6 months after surgery. Overall, 92.7% (95% CI, 85.8%-97.4%) of 749 patients were able to RTS at 4 years after surgery. Overall excellent patient-reported functional outcomes scores and low risk of complications with RTS after UKA were reported. Conclusion: The authors found that 48.1% of patients were able to RTS at 3 months after surgery and 76.5% were able to RTS at 6 months after UKA. Pooled proportion analysis showed that >90% of patients undergoing UKA were able to RTS at 48 months after surgery. The majority of patients who were able to RTS after UKA did so at a lower level of intensity than their preoperative level. RTS after UKA was associated with good patient-reported functional outcomes scores and a low risk of complications.
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Affiliation(s)
- Ganan T. Radhakrishnan
- Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
| | - Ahmed Magan
- Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
| | - Babar Kayani
- Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
| | - Ajay Asokan
- Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
| | - Flaminia Ronca
- Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
| | - Fares S. Haddad
- Institute of Sports, Health and Exercise, University College Hospital, London, UK
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34
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Yang HY, Kwak WK, Lee CH, Kang JK, Song EK, Seon JK. Extent of Preoperative Medial Meniscal Extrusion Influences Intermediate-Term Outcomes After Medial Opening-Wedge High Tibial Osteotomy. J Bone Joint Surg Am 2022; 104:316-325. [PMID: 34767542 DOI: 10.2106/jbjs.21.00456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The purpose of the present study was to determine the relationship between preoperative medial meniscal extrusion, as classified according to magnetic resonance imaging (MRI), and medial opening-wedge high tibial osteotomy outcomes at intermediate-term follow-up. METHODS We reviewed the records for 212 patients who had undergone medial opening-wedge high tibial osteotomy for the treatment of medial compartment osteoarthritis between January 2009 and September 2014, with a minimum duration of follow-up of 5 years. Patients were divided into 2 groups according to the presence of pathologic medial meniscal extrusion (>3 mm). Moreover, patients were divided into 4 groups according to MRI Osteoarthritis Knee Score (MOAKS) criteria and relative medial meniscal extrusion values. Associations between the extent of preoperative medial meniscal extrusion and clinical outcomes over a mean duration of follow-up of 8.1 years were evaluated with use of Spearman rank correlation analysis. Regression analyses were performed to determine preoperative characteristics relevant to medial meniscal extrusion. Clinical outcomes were assessed with use of the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Tegner activity scale score. RESULTS Postoperative KOOS pain scores were significantly different in the pathologic and non-pathologic medial meniscal extrusion groups (69.9 ± 18.0 versus 79.2 ± 11.4, respectively; p < 0.001). Additionally, the degree of preoperative medial meniscal extrusion based on both classification methods and the postoperative KOOS pain score were significantly correlated (r = -0.404 and -0.364; p < 0.001). Despite the inferior clinical outcomes associated with greater preoperative medial meniscal extrusion, medial opening-wedge high tibial osteotomy was associated with significant improvement in all outcome measures between the preoperative and latest follow-up assessments (p < 0.001). Preoperative meniscal patterns, including horizontal flap, complex, and root tears (p = 0.001), and increased Kellgren-Lawrence grade (p < 0.001) were related to the severity of medial meniscal extrusion. The survival rate was 94.8% at a mean of 8.1 years, and survival was not associated with the grade of medial meniscal extrusion as assessed with either classification scheme. CONCLUSIONS At intermediate-term follow-up, greater preoperative medial meniscal extrusion was related to inferior postoperative clinical outcomes, specifically pain, after medial opening-wedge high tibial osteotomy. Despite the inferior results associated with preoperative medial meniscal extrusion, medial opening-wedge high tibial osteotomy was associated with a satisfactory survival rate after a mean of 8.1 years, regardless of the extent of medial meniscal extrusion. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Hong-Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Hwasun, Republic of Korea
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Bardot LP, Micicoi G, Favreau H, Zeman P, Khakha R, Ehlinger M, Ollivier M. Global varus malalignment increase from double-leg to single-leg stance due to intra-articular changes. Knee Surg Sports Traumatol Arthrosc 2022; 30:715-720. [PMID: 33486561 DOI: 10.1007/s00167-021-06446-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/11/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE Preoperatively planned correction for tibial osteotomy surgery is usually based on weightbearing long-leg Xrays, while the surgery is performed in a supine non-weightbearing position. The purpose of this study was to assess the differences in lower limb alignment in three different weightbearing conditions: supine position, double-leg (DL) stance and single-sleg (SL) stance prior to performing a medial opening wedge high tibial osteotomy (MOWHTO) for varus malalignment. The hypothesis of this study was that progressive limb-loading would lead to an increased preoperative varus deformity. MATERIAL AND METHODS This retrospective study included 89 patients (96 knees) with isolated medial knee osteoarthritis (Ahlbäck grade I or II) and significant metaphyseal tibial vara (> 6°). The differences between supine position, DL stance and SL stance were analysed for the hip-knee-ankle angle (HKA), lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), weight-bearing line ratio (WBL) and joint line convergence angle (JLCA). RESULTS From a supine position to DL stance, the HKA angle slightly increased from 175.5° ± 1.1° to 176.3° ± 1.1° and JLCA changed from 2.0° ± 0.3° to 1.8° ± 0.3° without a statistically significant difference. From DL to SL stances, the HKA angle decreased from 176.3° ± 1.1° to 174.4° ± 1.1° (p < 0.05) and the JLCA increased from 1.8° ± 0.3° to 2.6° ± 0.3° (p < 0.05). A significant correlation was found between ΔHKA and ΔJLCA between the DL and the SL stances (R2 = 0.46; p = 0.01). CONCLUSION Varus malalignment increases with weight-bearing loading from double-leg to single-leg stances with an associated JLCA increase. Thus, single-leg stance radiographs may be useful to correct preoperative planning considering patient-specific changes in JLCA. LEVEL OF CLINICAL EVIDENCE III, retrospective comparative study.
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Affiliation(s)
- Léo-Pôhl Bardot
- Department of Orthopedics and Traumatology, Institute of Movement and Locomotion, St. Marguerite Hospital, 270 Boulevard Sainte Marguerite, BP 29, 13274, Marseille, France
- Department of Orthopedics and Traumatology, Institute for Locomotion, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Aix Marseille University, Marseille, France
| | - Grégoire Micicoi
- Department of Orthopedics and Traumatology, Institute for Locomotion, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Aix Marseille University, Marseille, France
- iULS-University Institute for Locomotion and Sports, Pasteur 2 Hospital, University Côte d'Azur, Nice, France
| | - Henri Favreau
- Service de Chirurgie Orthopedique et de TraumatologieHôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Petr Zeman
- Department of Orthopedics and Traumatology, Institute of Movement and Locomotion, St. Marguerite Hospital, 270 Boulevard Sainte Marguerite, BP 29, 13274, Marseille, France
| | - Raghbir Khakha
- Department of Orthopedics and Traumatology, Institute for Locomotion, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Aix Marseille University, Marseille, France
- Guys and St Thomas' Hospitals, Great Maze Pond, London, SE1 9RT, England
| | - Matthieu Ehlinger
- Service de Chirurgie Orthopedique et de TraumatologieHôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Matthieu Ollivier
- Department of Orthopedics and Traumatology, Institute of Movement and Locomotion, St. Marguerite Hospital, 270 Boulevard Sainte Marguerite, BP 29, 13274, Marseille, France.
- Department of Orthopedics and Traumatology, Institute for Locomotion, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Aix Marseille University, Marseille, France.
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Matsubara S, Onodera T, Iwasaki K, Hishimura R, Matsuoka M, Kondo E, Iwasaki N. Discrepancy in the Distribution Patterns of Subchondral Bone Density Across the Ankle Joint After Medial Opening-Wedge and Lateral Closing-Wedge High Tibial Osteotomy. Am J Sports Med 2022; 50:478-485. [PMID: 34913761 DOI: 10.1177/03635465211062235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND High tibial osteotomy (HTO) changes the alignment and dynamics of the ankle joint; however, differences in the stress distribution of the ankle joint after opening-wedge HTO (OWHTO) and closing-wedge HTO (CWHTO) are not understood. It is believed that subchondral bone density of the articular surface reflects the pattern of cumulative stress distribution across the joint surface. PURPOSE To clarify the effects of OWHTO and CWHTO on the distribution patterns of subchondral bone density across the ankle joint using computed tomography (CT)-osteoabsorptiometry. STUDY DESIGN Cohort study; Level of evidence, 4. METHODS Radiographic and CT data of 18 cases who underwent OWHTO (OW group), 12 cases who underwent CWHTO (CW group), and 11 cases with unilateral anterior cruciate ligament injury serving as controls were retrospectively reviewed. The subchondral bone density of the distal tibia was assessed in the 3 groups using CT-osteoabsorptiometry. The distal tibial surface of the ankle joint was divided into 4 parts in the coronal direction, and the percentage of the high-density area (%HDA) to each subregion was compared before and after HTO. RESULTS Preoperatively, comparing %HDA among the 3 groups, there were no significant differences in any regions. In the OW group, postoperative %HDA in the most medial region was significantly increased compared with preoperative %HDA (49.3% to 53.0%; P = .011), and postoperative %HDA in the most lateral region was significantly decreased (21.4% to 17.2%; P = .003). On the other hand, in the CW group, postoperative %HDA in the most medial region was significantly decreased (55.7% to 35.7%; P = .001), and %HDA in the second lateral region was significantly increased (23.6% to 29.2%; P = .002). CONCLUSION The ankle distribution pattern of subchondral bone density shifted significantly medially after OWHTO without fibular osteotomy, whereas the distribution pattern shifted laterally after CWHTO with fibular osteotomy. When the OWHTO is performed for patients with medial ankle osteoarthritis, surgeons should pay attention to potential postoperative progression of ankle osteoarthritis due to medial shift of the stress distribution in the ankle joint.
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Affiliation(s)
- Shinji Matsubara
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Koji Iwasaki
- Department of Functional Reconstruction for the Knee Joint, Faculty of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Ryosuke Hishimura
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Masatake Matsuoka
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Eiji Kondo
- Centre for Sports Medicine, Hokkaido University Hospital, Kita-ku, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
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Wang F, Ma W, Chen J, Cong W, Zhang Y, Yu T, Zhang Y. Prognostic factors for medial open-wedge high tibial osteotomy with spacer implantation in patients with medial compartmental knee osteoarthritis. J Orthop Surg Res 2022; 17:50. [PMID: 35090522 PMCID: PMC8796502 DOI: 10.1186/s13018-022-02934-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/10/2022] [Indexed: 11/28/2022] Open
Abstract
Background To identify medial open-wedge high tibial osteotomy (MOWHTO) prognostic factors with wedge-shaped spacer implantation (spacer-type MOWHTO) for varus medial compartment knee osteoarthritis. Methods Patients who underwent spacer-type MOWHTO between August 2018 and September 2019 were prospectively enrolled in this study. Patients were divided into effective group and invalid group based on the Western Ontario and McMasters University Osteoarthritis Index (WOMAC) score one year postoperatively. The variables assessed at baseline and one year postoperatively including age, sex, body mass index (BMI), Kellgren–Lawrence (K–L) grade, hip–knee–ankle angle (HKAA), medial proximal tibial angle (MPTA), posterior tibial slope angle (PTSA), Blackburn–Peel index (BPI), duration of symptoms, and WOMAC score were compared. Prognostic factors were analyzed using logistic regression, and the corresponding odds ratios were also calculated. Results A total of 104 patients were enrolled in the study protocol at one year postoperatively. The WOMAC score decreased from 72.39 ± 12.95 at baseline to 20.06 ± 12.96 at one year postoperatively. Univariate analysis revealed that the significant predictors of the WOMAC score were age > 70 years, BMI > 30 kg/m2, K–L grade IV, and pre-HKAA > 10° (P < 0.1 for all). Multivariable logistic regression analysis revealed that age > 70 (OR = 4.861) and K–L grade IV (OR = 6.590) were significantly associated with the higher WOMAC score at one year postoperatively. Conclusions Spacer-type MOWHTO is an effective treatment for osteoarthritis with varus deformity. The prognostic factors for spacer-type MOWHTO are age and K–L grade.
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Kanakamedala AC, Hurley ET, Manjunath AK, Jazrawi LM, Alaia MJ, Strauss EJ. High Tibial Osteotomies for the Treatment of Osteoarthritis of the Knee. JBJS Rev 2022; 10:01874474-202201000-00002. [PMID: 35020711 DOI: 10.2106/jbjs.rvw.21.00127] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» A high tibial osteotomy (HTO) is a joint-preserving procedure that can be used to treat symptomatic unicompartmental cartilage disorders in the presence of limb malalignment. » Appropriate patient selection and careful preoperative planning are vital for optimizing outcomes. » Based on past literature, correction of varus malalignment to 3° to 8° of valgus appears to lead to favorable results. Recently, there has been growing awareness that it is important to consider soft-tissue laxity during preoperative planning. » Although there has been a recent trend toward performing opening-wedge rather than closing-wedge or dome HTOs for unicompartmental osteoarthritis, current data suggest that all 3 are acceptable techniques with varying complication profiles. » Based on current evidence, an HTO provides pain relief, functional improvement, and a high rate of return to sport, with reported survivorship ranging from 74.7% to 97.6% and 66.0% to 90.4% at 10 and 15 years, respectively.
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Affiliation(s)
- Ajay C Kanakamedala
- Department of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY
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Morita Y, Kuriyama S, Maeda T, Nakamura S, Nishitani K, Ito H, Matsuda S. Hinge fractures reaching the tibial plateau can be caused by forcible opening of insufficient posterior osteotomy during open-wedge high tibial osteotomy. Knee Surg Sports Traumatol Arthrosc 2022; 31:1533-1545. [PMID: 34981163 DOI: 10.1007/s00167-021-06816-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 11/20/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE The purpose of this study was to use the finite element method (FEM) to reproduce fracture lines that reach the lateral tibial plateau during open-wedge high tibial osteotomy (OWHTO) in patients with Type III lateral hinge fracture (LHF). It was hypothesized that the FEM could clarify biomechanical causes of Type III LHF, enabling prevention of adverse complications. METHODS This study used the nonlinear FEM to analyze the data of eight knees in eight patients (two males and six females) with Type III LHF among 82 patients who underwent OWHTO, as well as the data of eight individuals with no LHF. To predict the onset of Type III LHF, simulation models were also developed in which posterior osteotomy sufficiency varied from 50% to perfect, the latter defined as osteotomy reaching the hinge point. RESULTS Real-life instances of Type III LHF caused by insufficient posterior osteotomy were reproduced in all patient-specific FEM models, and these models accurately predicted fracture types and locations. During opening of the osteotomy gap, the fracture line reached the lateral tibial plateau, and extended vertically from the end of the insufficient posterior osteotomy, avoiding the rigid proximal tibiofibular joint. In contrast, sufficient posterior osteotomy resulted in a lack of LHF. Posterior osteotomy extension ≥ 70% of the width of the osteotomy plane was the cut-off value to prevent Type III LHF. CONCLUSION Forced opening of insufficient posterior osteotomy was found to be a biomechanical cause of Type III LHF that extended perpendicularly to the lateral tibial plateau, avoiding the proximal tibiofibular joint. The clinical significance of this study is that sufficient posterior osteotomy during OWHTO, defined as at least 70% of the width of the osteotomy plane, can prevent Type III LHF.
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Affiliation(s)
- Yugo Morita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Shinichi Kuriyama
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Takahiro Maeda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Shinichiro Nakamura
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kohei Nishitani
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiromu Ito
- Department of Orthopaedic Surgery, Kurashiki Central Hospital, Okayama, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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Yang HY, Song EK, Kang SJ, Kwak WK, Kang JK, Seon JK. Allogenic umbilical cord blood-derived mesenchymal stromal cell implantation was superior to bone marrow aspirate concentrate augmentation for cartilage regeneration despite similar clinical outcomes. Knee Surg Sports Traumatol Arthrosc 2022; 30:208-218. [PMID: 33492407 DOI: 10.1007/s00167-021-06450-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/11/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE The aim of this study was to compare clinical and second-look arthroscopic outcomes between bone marrow aspirate concentrate (BMAC) augmentation and human umbilical cord blood-derived mesenchymal stromal cell (hUCB-MSC) implantation in high tibial osteotomy (HTO) for medial compartmental knee osteoarthritis and identify the relationship between articular cartilage regeneration and HTO outcomes. METHODS A total of 176 patients who underwent HTO combined with a BMAC or hUCB-MSC procedure for medial compartment osteoarthritis (Kellgren-Lawrence grade 3) between June 2014 and September 2018 with a minimum follow-up of 2 years were reviewed. After HTO, multiple holes were drilled at cartilage defect sites of the medial femoral condyle (MFC), and then prepared BMAC or hUCB-MSCs in combination with scaffolds were implanted in the MFC lesions. After propensity score matching based on sex, age, body mass index, and lesion size, 55 patients in each of the BMAC and hUCB-MSC groups were successfully matched. Second-look arthroscopic findings were assessed according to the International Cartilage Repair Society (ICRS) Cartilage Repair Assessment (CRA) grading system and Koshino staging system. Clinical outcomes were evaluated using the International Knee Documentation Committee (IKDC), Knee Injury and Osteoarthritis Outcome Score (KOOS), Short-Form 36 (SF-36), and Tegner activity scores. RESULTS At a mean follow-up of 33 months, clinical outcomes including IKDC, KOOS, SF-36, and Tegner activity scores were significantly improved in both groups (p < 0.001); however, there were no differences between the two groups. Second-look arthroscopy showed better healing of regenerated cartilage in the hUCB-MSC group (Grade I [4 cases, 9.1%]; Grade II [30 cases, 68.2%]; Grade III [11 cases, 22.7%]) than in the BMAC group (Grade I [1 case, 2.7%]; Grade II [20 cases, 54.1%]; Grade III [11 cases, 29.7%]; Grade IV [5 cases, 13.5%]) according to the ICRS CRA grading system (p = 0.040). There was no significant intergroup difference in terms of defect coverage based on the Koshino staging system (p = 0.057). Moreover, ICRS CRA grades at second-look arthroscopy were significantly correlated with clinical outcomes (r = - 0.337; p = 0.002). CONCLUSION There were no significant differences in the clinical outcomes between the two groups. Both treatments provided similar, reliable outcomes in terms of pain relief, functional scores, and quality of life at a mean follow-up of 33 months. However, hUCB-MSC implantation was more effective than BMAC augmentation for articular cartilage regeneration.
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Affiliation(s)
- Hong-Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Eun-Kyoo Song
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Sung-Ju Kang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Woo-Kyoung Kwak
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Joon-Kyoo Kang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea
| | - Jong-Keun Seon
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, 322 Seoyang-ro, Hwasun, Chonnam, 58128, Republic of Korea.
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Suh DW, Han SB, Yeo WJ, Cheong K, So SY, Kyung BS. Human umbilical cord-blood-derived mesenchymal stem cell can improve the clinical outcome and Joint space width after high tibial osteotomy. Knee 2021; 33:31-37. [PMID: 34536766 DOI: 10.1016/j.knee.2021.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 05/30/2021] [Accepted: 08/25/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND There is limited study about the human umbilical cord-blood derived mesenchymal stem cell (hUCB-MSC) cartilage regeneration procedures combined with high tibial osteotomy (HTO). We compared the clinical and radiological results of hUCB-MSC cartilage regeneration procedures combined with HTO to those of microfracture with HTO. METHODS From August 2017 to December 2018, HTO patients with International Cartilage Regeneration and Joint Preservation Society (ICRS) grade IV cartilage defects over 200 mm2 on medial femoral condyle (MFC) were enrolled. For comparison, all participants were divided into two groups: those who had undergone an hUCB-MSC induced cartilage regeneration procedure (group MSC) and those with microfractures only (group C, controls). Clinically, Hospital for Special Surgery (HSS), International Knee Documentation Committee (IKDC), and Lysholm scores were evaluated post-operatively at 18 months. Radiologically, mechanical axis (MA) and joint space width (JSW) were evaluated. RESULTS A total of 100 knees were enrolled (43 in group MSC, 57 in group C). The IKDC score in group MSC (69) was better than that in group C (62; P < 0.05). The JSW increment in the MSC group (0.6 mm) was more than that in group C (0.1 mm; P < 0.05). No patient developed nonunion, correction loss, or arthroplasty conversion. CONCLUSION hUCB-MSCs can improve clinical outcome and JSW better than microfracture only in HTO patients.
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Affiliation(s)
- Dong Won Suh
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Seung Beom Han
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Woo Jin Yeo
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Kuhoang Cheong
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Sang-Yeon So
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Bong Soo Kyung
- Joint Center, Barunsesang Hospital, Seongnam, Gyeonggi-do, South Korea.
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Rodkey DL, McMillan LJ, Slaven SE, Treyster DA, Dickens JF, Cody JP. Unicompartmental Knee Arthroplasty: More Conversions, Fewer Complications Than Proximal Tibial Osteotomy in a Young Population. J Arthroplasty 2021; 36:3878-3882. [PMID: 34481695 DOI: 10.1016/j.arth.2021.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/07/2021] [Accepted: 08/02/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Patients with isolated medial compartment osteoarthritis requiring surgical intervention generally have two surgical options: unicompartmental knee arthroplasty (UKA) and proximal tibial osteotomy (PTO). Outcomes of reoperation rates and survivorship are important for counseling patients on treatment options. METHODS A retrospective, comparative cohort study was performed for a consecutive series of patients in the Military Health System who underwent either UKA or PTO between 2003 and 2018. All patients were between 18 and 55 years old and diagnosed with isolated medial compartmental arthritis. Cases with concurrent meniscal or cartilage procedures were included, while cases with concurrent ligament reconstruction were excluded. A minimum 2-year follow-up was required. The primary outcome was conversion to total knee arthroplasty, and the secondary outcome was reoperation for any reason. RESULTS A total of 383 procedures were performed for isolated medial compartment arthritis in 303 patients (UKA 270, PTO 113). A multivariate analysis showed that PTO was associated with decreased risk of conversion to TKA compared to UKA (P = .0364). However, the reoperation due to complications was significantly higher in the PTO group (21.2% vs 2.2%; P ≤ .01). The 5-year conversion rate was 13.7% for UKA and 3.5% for PTO (P = .0033) with an average time to conversion of 3.1 years for UKA and 2.9 years for PTO (P = .7805). CONCLUSIONS In young patients with isolated medial compartment arthritis, conversion rates to TKA are higher with UKA compared to PTO. However, overall reoperation rate is higher with PTO, secondary to complications and revision procedures. Overall survivorship is acceptable for both procedures.
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Affiliation(s)
| | | | - Sean E Slaven
- Walter Reed National Military Medical Center, Bethesda, MD
| | | | | | - John P Cody
- Walter Reed National Military Medical Center, Bethesda, MD
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Yang HY, Kwak WK, Kang SJ, Song EK, Seon JK. Second-look arthroscopic cartilage status is related to intermediate-term outcomes after medial opening-wedge high tibial osteotomy. Bone Joint J 2021; 103-B:1686-1694. [PMID: 34719267 DOI: 10.1302/0301-620x.103b11.bjj-2020-2130.r2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
AIMS To determine the relationship between articular cartilage status and clinical outcomes after medial opening-wedge high tibial osteotomy (MOHTO) for medial compartmental knee osteoarthritis at intermediate follow-up. METHODS We reviewed 155 patients (155 knees) who underwent MOHTO from January 2008 to December 2016 followed by second-look arthroscopy with a mean 5.3-year follow-up (2.0 to 11.7). Arthroscopic findings were assessed according to the International Cartilage Repair Society (ICRS) Cartilage Repair Assessment (CRA) grading system. Patients were divided into two groups based on the presence of normal or nearly normal quality cartilage in the medial femoral condyle: good (second-look arthroscopic) status (ICRS grade I or II; n = 70), and poor (second-look arthroscopic) status (ICRS grade III or IV; n = 85) groups at the time of second-look arthroscopy. Clinical outcomes were assessed using the International Knee Documentation Committee (IKDC) score, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and 36-Item Short Form survey. RESULTS Significant improvements in all clinical outcome categories were found between the preoperative and second-look arthroscopic assessments in both groups (p < 0.001). At the latest follow-up, the mean IKDC and WOMAC scores in the good status group further improved compared with those at the time of second-look arthroscopic surgery (p < 0.001), which was not shown in the poor status group. The mean IKDC (good status, 72.8 (SD 12.5); poor status, 64.7 (SD 12.1); p = 0.002) and mean WOMAC scores (good status, 15.7 (SD 10.8); poor status, 21.8 (SD 13.6); p = 0.004) significantly differed between both groups at the latest follow-up. Moreover, significant correlations were observed between ICRS CRA grades and IKDC scores (negative correlation; p < 0.001) and WOMAC scores (positive correlation; p < 0.001) at the latest follow-up. Good cartilage status was found more frequently in knees with the desired range of 2° to 6° valgus correction than in those with corrections outside this range (p = 0.019). CONCLUSION Second-look arthroscopic cartilage status correlated with clinical outcomes after MOHTO at intermediate-term follow-up, despite the relatively small clinical differences between groups. Cite this article: Bone Joint J 2021;103-B(11):1686-1694.
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Affiliation(s)
- Hong-Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Woo-Kyoung Kwak
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Sung Ju Kang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Eun-Kyoo Song
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Jong-Keun Seon
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
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Park JG, Han SB, Jang KM. Association of Preoperative Tibial Varus Deformity With Joint Line Orientation and Clinical Outcome After Open-Wedge High Tibial Osteotomy for Medial Compartment Osteoarthritis: A Propensity Score-Matched Analysis. Am J Sports Med 2021; 49:3551-3560. [PMID: 34623942 DOI: 10.1177/03635465211044146] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The correction of lower limb deformity should be performed at the site of deformity to maintain knee joint orientation. However, the effectiveness of open-wedge high tibial osteotomy (OWHTO) for treatment of medial osteoarthritis in varus malalignment without definite tibial varus deformity has not been confirmed. PURPOSE/HYPOTHESIS This study aimed to compare the clinical and radiologic outcomes after OWHTO in patients without tibial varus deformity versus patients with tibial varus deformity after matching for confounding factors. We hypothesized that these outcomes would be inferior in patients without tibial varus deformity. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS The outcomes of 133 OWHTO operations for medial osteoarthritis in 107 patients were retrospectively reviewed after follow-up for >2 years. The patients were divided into group 1 (tibia with varus deformity, preoperative medial proximal tibial angle [MPTA] <85°) and group 2 (tibia without varus deformity, preoperative MPTA ≥85°). The confounding factors, including patient characteristics, preoperative limb alignment, degree of osteoarthritis, and correction angle, were matched using propensity score matching. The radiologic parameters, including MPTA and joint line obliquity, were evaluated preoperatively, between 6 and 12 months postoperatively, and at the last follow-up. The radiologic outcomes were assessed using the medial joint space width and mechanical hip-knee-ankle angle. The clinical outcomes were evaluated by the Hospital for Special Surgery knee score, Knee Society Score (KSS), and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score. The clinical and radiologic outcomes were compared between the groups. The proportions of patients achieving improvement in the clinical outcome beyond the minimal clinically important difference (MCID) or minimally important change were compared between the groups. RESULTS After propensity score matching, 32 patients were selected for each group. The mechanical hip-knee-ankle angle was corrected without significant difference from a mean ± SD varus angle of 8.0°± 3.3° to valgus angle of -3.2°± 2.5° in group 1 and from varus 8.0°± 3.6° to valgus -3.9°± 1.7° in group 2. The preoperative joint line obliquity was greater in group 2 as compared with group 1 (2.2°± 2.2° vs -0.4°± 1.8°, P < .001). With a similar 10° correction angle, the postoperative MPTA and joint line obliquity were 96.6°± 2.5° and 5.3°± 2.3°, respectively, in group 2, which were greater than 94.0°± 2.6° and 3.5°± 1.8°, respectively, in group 1 (both P < .001). The changes in joint space width and mechanical hip-knee-ankle angle were not significantly different between the groups over the follow-up period. At the last follow-up, the postoperative KSS objective score and WOMAC pain score in terms of symptom improvement were not significantly different between groups (P = .092 and .068). However, the postoperative KSS and WOMAC functional scores were significantly worse in group 2 than in group 1 (77.3 ± 14.1 vs 84.4 ± 11.6, P = .044; 10.3 ± 9.2 vs 5.6 ± 7.2, P = .001). In group 1, 96.9% and 100% of patients showed improvements of >10 points in the KSS functional score and 15 points in the WOMAC functional score based on MCID or minimally important change. Meanwhile, 65.6% and 81.3% of patients in group 2, which were significantly lower than those of group 1, were improved beyond the MCID or minimally important change (P = .001 and .024, respectively). CONCLUSION In varus malalignment, the knee joint line was more oblique in patients without tibial varus deformity after OWHTO pre- and postoperatively. The clinical outcomes in terms of functional scores were inferior in patients without tibial varus deformity. However, the radiologic outcomes and symptomatic improvement after OWHTO were comparable regardless of the preoperative tibial varus deformity on midterm follow-up.
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Affiliation(s)
- Jun-Gu Park
- Department of Orthopaedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seung-Beom Han
- Department of Orthopaedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Ki-Mo Jang
- Department of Orthopaedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul, Republic of Korea
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Ollivier B, Berger P, Depuydt C, Vandenneucker H. Good long-term survival and patient-reported outcomes after high tibial osteotomy for medial compartment osteoarthritis. Knee Surg Sports Traumatol Arthrosc 2021; 29:3569-3584. [PMID: 32909057 DOI: 10.1007/s00167-020-06262-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/28/2020] [Indexed: 12/26/2022]
Abstract
The lateral closing and medial opening wedge high tibial osteotomy can correct a varus malalignment of the knee caused by medial compartment osteoarthritis. These procedures have produced great short-term and mid-term results. As no systematic review has examined their long-term results yet, the goal of this article was to compare the results of all articles about lateral closing and medial opening wedge high tibial osteotomies, published after the year 2000, with a mean follow-up of more than 10 years. A systematic search of the Medline, Web of Science and Cochrane databases resulted in the inclusion of 30 articles. All these studies combined examined the results of 7087 high tibial osteotomies in a total of 6636 patients after a mean follow-up of more than 10 years. Primary outcome measures were the survival rate of the osteotomy, functional scores, patient satisfaction and pain scores. Secondary outcome measures were alignment correction and the identification of factors influencing the survival of the osteotomy. The 5-year, 10-year, 15-year and 20-year survival rates, respectively, ranged from 86 to 100%, 64-97.6%, 44-93.2% and 46-85.1%. The subjective scoring systems showed an improvement postoperatively that was maintained until final follow-up. The anatomical and mechanical tibiofemoral axis were, respectively, corrected to a mean of 7.3°-13.8° of valgus and 0.6°-4° of valgus. The results of the articles evaluating the influence of potential risk factors were contradictory. Despite the low quality of the available evidence, the lateral closing and medial opening wedge high tibial osteotomy seem to remain valid long-term treatment options for patients with painful varus malalignment caused by isolated medial compartment osteoarthritis of the knee. The available results indicate that the need for arthroplasty could be delayed for more than 15 years in the majority of patients. However, higher-quality studies are needed to confirm these findings. As a systematic review is assigned a level of evidence equivalent to the lowest level of evidence used from the analyzed manuscripts, the level of evidence of this systematic review is IV.
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Affiliation(s)
- Britt Ollivier
- Department of Orthopaedics, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.
| | - Pieter Berger
- Department of Orthopaedics, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Cedric Depuydt
- Department of Orthopaedics, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Hilde Vandenneucker
- Department of Orthopaedics, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.,Department of Development and Regeneration, KU Leuven, University of Leuven, 3000, Leuven, Belgium
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46
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Wu K, Zeng J, Han L, Feng W, Lin X, Zeng Y. Effect of the amount of correction on posterior tibial slope and patellar height in open-wedge high tibial osteotomy. J Orthop Surg (Hong Kong) 2021; 29:23094990211049571. [PMID: 34670434 DOI: 10.1177/23094990211049571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objectives: To evaluate the effect of amount of correction on postoperative changes in PTS (posterior tibial slope), PH (patellar height), and clinical outcomes following biplanar OWHTO (open-wedge high tibial osteotomy). Method: This study included 79 knees (32 left and 47 right) of 79 patients (mean age 60.28 ± 4.2 years, 24 males, 55 females) with varus malalignment and symptomatic isolated medial joint osteoarthritis who underwent OWHTO. According to the amount of correction angles, all patients were divided into three groups: LCA (large correction angle) group (>14°), MCA (medium correction angle) group (10°-14°), and SCA (small correction angle) group (<10°). All patients were clinically assessed according to the Lysholm score, HSS (hospital for special surgery knee score), and KSS (knee society score) prior to and after surgery. For radiographic analysis, we measured the PTS, PH [ISI (Insall-Salvati index), and BPI (Blackburne-Peel index)]. The pre-post difference of PTS, ISI, and BPI was calculated by subtracting the post-OWHTO value to the pre-OWHTO value in three groups, respectively. The preoperative, postoperative, and difference of PTS, ISI, and BPI values were analyzed according to the correction angle. The mean follow-up period was 28.5 months (SD, 4.9; range 18-52 months). Results: Radiologically, PTS increased and PH decreased after surgery on the whole (p < .05). The relationship between amount of correction and slope increase is significant (p < .001). Furthermore, the pairwise difference between the LCA group and SCA group and MCA group is significant respectively (p < .05). In terms of PH, the LCA group yielded ISI and BPI that were significantly different from baseline for the SCA group and MCA group. In addition, the pairwise difference between the SCA group and LCA group in ISI and BPI is significant (p = .031). Clinically, significant improvements were observed in postoperative clinical scores of the Lysholm score, HSS, and KSS (p < .05). Seventy-four patients (93.67%) reported satisfaction with surgery. However, no correlation was found between changes in PTS and PH with postoperative knee score. No severe adverse complications were observed. Conclusions: The amount of correction angle is a significant factor affecting the PTS and PH in OWHTO. With increased correction angle, the likelihood of increasing the PTS and decreasing the PH increases. Special attention should be paid to keep PTS and PH unchanged in cases where large corrections are required. Otherwise, closing wedge osteotomy or other intraoperative effective measures are supposed to be adopted.
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Affiliation(s)
- Keliang Wu
- 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianchun Zeng
- The Third Department of Orthopedics, 369351The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Linjing Han
- 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenjun Feng
- The Third Department of Orthopedics, 369351The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaosheng Lin
- Integrated Traditional Chinese and Western Medicine Hospital of Shenzhen, Shenzhen, China
| | - Yirong Zeng
- The Third Department of Orthopedics, 369351The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Ishizuka S, Hiraiwa H, Yamashita S, Oba H, Kawamura Y, Sakaguchi T, Idota M, Hasegawa Y, Imagama S. Long-Term Survivorship of Closed-Wedge High Tibial Osteotomy for Severe Knee Osteoarthritis: Outcomes After 10 to 37 Years. Orthop J Sports Med 2021; 9:23259671211046964. [PMID: 34692884 PMCID: PMC8532226 DOI: 10.1177/23259671211046964] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/29/2021] [Indexed: 11/24/2022] Open
Abstract
Background: High tibial osteotomy (HTO) was developed as a joint-preserving procedure to treat relatively young patients with isolated medial compartmental knee osteoarthritis (OA). Long-term survivorship after HTO is important to determine whether patients will need additional surgery. Purpose: To determine the long-term (>35-year) survivorship and prognostic factors for closed-wedge HTO (CWHTO) for severe medial OA. Study Design: Case series; Level of evidence, 4. Methods: We retrospectively evaluated patients who underwent CWHTO for severe medial knee OA between 1983 and 2009 at our institution, Nagoya University Graduate School of Medicine (Nagoya, Japan). Patient demographics, follow-up period, and pre- and postoperative femoral-tibial angle (FTA) were reviewed. The patients or the relatives of the patients were interviewed by telephone to record postoperative status, including conversion to total knee arthroplasty (TKA). Results: Of the 74 CWHTO procedures performed, we evaluated 56 procedures in 45 patients (mean age at time of surgery, 56.8 years). The mean follow-up period was 17.1 years. Nine knees (16.1%) underwent conversion to TKA. The mean time to TKA conversion was 15.6 years. Kaplan-Meier analysis revealed a 10-year survival rate of 90.1%, a 15-year rate of 83.8%, a 20-year rate of 75.9%, and a 35-year rate of 75.9%. Log-rank test showed that age ≥55 years (P = .044), body mass index (BMI) ≥25 kg/m2 (P = .0016), and preoperative FTA <185° (P = .0034) were risk factors associated with TKA conversion. Multivariate analyses adjusted for age and sex identified BMI ≥25 kg/m2 (hazard ratio [HR], 13.4; 95% CI, 1.7-106.9; P = .014) and preoperative FTA <185° (HR, 4.2; 95% CI, 1.1-16.6; P = .04) as risk factors associated with TKA conversion. Conclusion: The survival rate of CWHTO for severe medial knee OA was 90.1% at 10 years, 83.8% at 15 years, and 75.9% at 20 years and 35 years. Furthermore, a BMI ≥25 kg/m2 and FTA <185° were the independent risk factors associated with TKA conversion after CWHTO.
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Affiliation(s)
- Shinya Ishizuka
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Hiraiwa
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Yamashita
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroki Oba
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Kawamura
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takefumi Sakaguchi
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaru Idota
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukiharu Hasegawa
- Department of Rehabilitation, Kansai University of Welfare Science, Osaka, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Akamatsu T, Kumagai K, Yamada S, Nejima S, Sotozawa M, Ogino T, Inaba Y. No differences in clinical outcomes and cartilage repair between opening wedge and closed wedge high tibial osteotomies at short-term follow-up: A retrospective case series analysis. J Orthop Surg (Hong Kong) 2021; 29:23094990211020366. [PMID: 34165004 DOI: 10.1177/23094990211020366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE The aim of this study was to assess differences in clinical outcomes and postoperative cartilage repair between opening wedge high tibial osteotomy (OWHTO) and closed wedge HTO (CWHTO) for medial osteoarthritis (OA) of the knee. METHODS A total of 90 knees of 76 patients who underwent OWHTO (45 knees of 40 patients) and CWHTO (45 knees of 36 patients) was followed-up for 2 years. Cartilage repair at the medial compartment was arthroscopically classified into the following stages: Stage 1 (no reparative change); Stage 2 (partial coverage with white cartilaginous tissue); and Stage 3 (full coverage with white cartilaginous tissue). Clinical outcomes were assessed using Knee Society scores, and radiographic assessment was carried out by anatomical femorotibial angle (aFTA). RESULTS Regarding preoperative OA grade, varus alignment, and function score, CWHTO patients showed more advanced OA status than OWHTO patients. Knee scores and function scores were significantly improved after surgery with both HTO procedures (P < 0.05), with no significant difference between the two procedures. Cartilage repair of stage 2 or 3 was found in more than 80% of the subjects in the medial femoral condyle and more than 60% in the medial tibial condyle. However, there were no significant differences between the two HTO procedures. Multivariate logistic regression analysis showed that preoperative International Cartilage Repair Society (ICRS) grade was the only factor affecting cartilage repair. CONCLUSIONS CWHTO improved clinical outcomes and cartilage status as much as OWHTO. Although the effects of cartilage repair on clinical outcomes are unknown, HTO is an effective treatment option even for severe medial OA of the knee.
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Affiliation(s)
- Tomotaka Akamatsu
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Ken Kumagai
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Shunsuke Yamada
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Shuntaro Nejima
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Masaichi Sotozawa
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Takahiro Ogino
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, 13155Yokohama City University, Yokohama, Japan
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49
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Kim SC, Kim DH, Lee JI, Kim TW, Lee YS. Comparative Analysis of Serial Union Patterns After Opening-Wedge High Tibial Osteotomy with and without Bone-Void Fillers. J Bone Joint Surg Am 2021; 103:1788-1797. [PMID: 34375320 DOI: 10.2106/jbjs.20.00778] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Opening-wedge high tibial osteotomy produces opening gaps; however, there is little consensus on bone graft necessity and the material that would produce a superior union. The purposes of the present study were (1) to compare the serial union patterns associated with various bone-void fillers, (2) to determine whether bone-void filler is necessary to achieve bone union of the opening gap, and (3) to determine whether bone union is different according to the correction degree during opening-wedge high tibial osteotomy. METHODS In this retrospective study, 97 knees were randomly assigned to treatment with hydroxyapatite chip bone (Group A), allogenic chip bone (Group B), or no bone graft (Group C) and were analyzed after a minimum 1-year follow-up. To compare the bone union pattern, the area of callus filling located at the most medial side on an anteroposterior radiograph of the knee was recorded, and a modified van Hemert scoring system was used in the mediolaterally divided 5 zones. The correlations between the correction degree and bone union scores were evaluated. RESULTS There were no significant differences in the extent of mediolateral bone-healing at 6 weeks or 3 months postoperatively (p = 0.172 and p = 0.228). However, Group C showed more prominent progression of the gap filling to the medial side compared with Groups A and B at 6 months postoperatively (p = 0.002). Group C showed slow progression of bone union up to 6 weeks but surpassed the other groups at 6 months. The union pattern was not different between Groups A and B, and the correction degree was not correlated with bone union beyond 3 months postoperatively. CONCLUSIONS Despite the different gap-healing patterns, opening-wedge high tibial osteotomy without bone graft achieved bone union comparable with allogenic and synthetic graft materials. Group C (no bone graft) showed slower progression of bone union but surpassed the other groups at around 6 months. Based on the union pattern, there was no difference depending on the correction degree and the use of bone-void fillers. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Seong Chan Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital Seongnam, Seongnam, South Korea
| | - Dong Hyun Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital Seongnam, Seongnam, South Korea
| | - Jae Ik Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital Seongnam, Seongnam, South Korea
| | - Tae Woo Kim
- Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Boramae Medical Center, Seoul, South Korea
| | - Yong Seuk Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital Seongnam, Seongnam, South Korea
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50
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Lee NK, Lee KM, Han H, Koo S, Kang SB, Chang CB. Relationship between radiographic measurements and knee adduction moment using 3D gait analysis. Gait Posture 2021; 90:179-184. [PMID: 34492504 DOI: 10.1016/j.gaitpost.2021.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/13/2021] [Accepted: 08/30/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Radiographic factors estimate the state of the static knee joint, and it is questionable how well these parameters reflect the dynamic knee condition. The external knee adduction moment (KAM) during gait is known to be a kinetic variable contributing to osteoarthritis progression. This study aims to investigate the effects of static radiographic parameters on the dynamic KAM during gait. METHODS Overall, 123 patients (mean age, 65.7 years; standard deviation, 8.1 years; 34 men and 89 women) were included. Seven radiographic parameters including the mechanical tibiofemoral angle (mTFA), Kellgren-Lawrence grade, and ankle joint line orientation (AJLO) were measured on radiographs, and the maximum KAM and KAM-time integral in the stance phase were obtained using three-dimensional gait analysis. The correlation and multiple regression analyses were performed for identifying significant radiographic measurements associated with the KAM. RESULTS Most of the radiographic measurements correlated with the maximum KAM and KAM-time integral. As a result of multiple regression analysis, the mTFA (p < 0.001) and AJLO (p = 0.003) were identified as significant factors associated with the KAM-time integral (R2 = 0.450); the mTFA (p < 0.001) and AJLO (p = 0.003) were identified as a significant factor associated with the maximum KAM (R2 = 0.352) in multiple regression analysis. The discriminant validity of KAM was highest at varus 5.7 degree of the mTFA and 7.5 degree of the AJLO. SIGNIFICANCE The mTFA and AJLO were significantly associated with the KAM. However, to be used as a surgical indication for corrective osteotomy, a longitudinal study is needed to validate whether the mTFA and AJLO values directly cause osteoarthritis progression as we have suggested. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Na-Kyoung Lee
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam-si, South Korea
| | - Kyoung Min Lee
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam-si, South Korea.
| | - Heesoo Han
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam-si, South Korea
| | - Seungbum Koo
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejon, South Korea
| | - Seung-Baik Kang
- Department of Orthopaedic Surgery, SMG-SNU Boramae Medical Center, Seoul, South Korea; Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Chong Bum Chang
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam-si, South Korea; Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
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