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Shimakawa T, Nakamura R, Okano A. The concept of the tibial condylar valgus osteotomy (TCVO) could be applied to the impacted anteromedial tibial plateau fracture with a thin fragment. J Orthop Sci 2024:S0949-2658(24)00096-4. [PMID: 38824099 DOI: 10.1016/j.jos.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 03/06/2024] [Accepted: 04/23/2024] [Indexed: 06/03/2024]
Affiliation(s)
- Tomoyuki Shimakawa
- Department of Orhthopaedic Surgery, Yaesekai Doujin Hospital, 901-2133 Gusukuma 1-37-12, Urasoe City, Okinawa Prefecture, Japan; Joint Preservation and Sports Orthopaedic Center, Harue Hospital, 919-0476 Harue-cho Haribara 65-7, Sakai City, Fukui Prefecture, Japan.
| | - Ryuichi Nakamura
- Joint Preservation and Sports Orthopaedic Center, Harue Hospital, 919-0476 Harue-cho Haribara 65-7, Sakai City, Fukui Prefecture, Japan.
| | - Akira Okano
- Joint Preservation and Sports Orthopaedic Center, Harue Hospital, 919-0476 Harue-cho Haribara 65-7, Sakai City, Fukui Prefecture, Japan.
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Ma M, Zhao Y, Li H, Yang W, Tang Y, Zhou R, Zhang W. Arthroscopic Transtibial Pullout Repair and Tibial Condylar Valgus Osteotomy for Medial Meniscus Posterior Root Tear With Varus Knee. Arthrosc Tech 2024; 13:102966. [PMID: 38835442 PMCID: PMC11144963 DOI: 10.1016/j.eats.2024.102966] [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: 10/07/2023] [Accepted: 01/20/2024] [Indexed: 06/06/2024] Open
Abstract
As an important structure for maintaining the hoop tension of the medial meniscus of the knee joint, the posterior root is receiving increasing attention. Medial meniscus posterior root tear is an important reason for the occurrence, development, and kinematics changes of knee osteoarthritis. It is necessary to repair the posterior root of meniscus for restoring joint kinematics and improving clinical efficacy. This Technical Note reports a medial meniscus posterior root tear repair technique using arthroscopic transtibial pullout repair (ATPR) combined with tibial condylar valgus osteotomy. The aim of this technique is to repair the posterior root of the medial meniscus while correcting the force line through osteotomy, opening the joint gap, improving the joint surface fit, providing a good mechanical environment for meniscus repair, thereby improving the healing rate of the posterior root of the meniscus and reducing the risk of retear. Although clinical evidence is currently limited, we believe that this technology may have more clinical advantages compared with ATPR alone or ATPR combined with high tibial osteotomy.
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Affiliation(s)
- Mengjun Ma
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yu Zhao
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Hongyu Li
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Wen Yang
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yiyong Tang
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Ri Zhou
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Wentao Zhang
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
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Higuchi T, Koseki H, Yonekura A, Imai C, Tomonaga I, Sunagawa S, Matsumura U, Osaki M. Comparison of short-term clinical outcomes between open-wedge high tibial osteotomy and tibial condylar valgus osteotomy. BMC Musculoskelet Disord 2024; 25:98. [PMID: 38281004 PMCID: PMC10821256 DOI: 10.1186/s12891-024-07205-7] [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] [Received: 09/02/2023] [Accepted: 01/14/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND This study aimed to compare radiological features and short-term clinical outcomes between open-wedge high tibial osteotomy (OWHTO) and tibial condylar valgus osteotomy (TCVO), to provide information facilitating decision-making regarding those two procedures. METHODS Twenty-seven cases involving 30 knees that had undergone OWHTO (HTO group) and eighteen cases involving 19 knees that had undergone TCVO (TCVO group) for medial compartment knee osteoarthritis (OA) were retrospectively evaluated. Patient characteristics, severity of knee OA, lower limb alignment, joint congruity and instability were measured from standing full-length leg and knee radiographs obtained before and 1 year after surgery. Range of motion in the knee joint was measured and Knee Injury and Osteoarthritis Outcome Score (KOOS) was obtained to evaluate clinical results preoperatively and 1 year postoperatively. RESULTS Mean age was significantly higher in the TCVO group than in the HTO group. Radiological features in the TCVO group included greater frequencies of advanced knee OA, varus lower limb malalignment, higher joint line convergence angle, and varus-valgus joint instability compared to the HTO group before surgery. However, alignment of the lower limb and joint instability improved to comparable levels after surgery in both groups. Maximum flexion angles were significantly lower in the TCVO group than in the HTO group both pre- and postoperatively. Mean values in all KOOS subscales recovered similarly after surgery in both groups, although postoperative scores on three subscales (Symptom, Pain, and ADL) were lower in the TCVO group (Symptom: HTO, 79.0; TCVO, 67.5; Pain: HTO, 80.5; TCVO, 71.1; ADL: HTO, 86.9; TCVO, 78.0). CONCLUSIONS Both osteotomy procedures improved short-term clinical outcomes postoperatively. TCVO appears preferable in cases of advanced knee OA with incongruity and high varus-valgus joint instability. An appropriate choice of osteotomy procedure is important to obtain favorable clinical outcomes.
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Affiliation(s)
- Takashi Higuchi
- Department of Physical Therapy, Osaka University of Human Sciences, Settsu, Japan
| | - Hironobu Koseki
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan.
- Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
| | - Akihiko Yonekura
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Chieko Imai
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Iku Tomonaga
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shinya Sunagawa
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan
| | - Umi Matsumura
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan
| | - Makoto Osaki
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Mabrouk A, An JS, Glauco L, Jacque C, Kley K, Sharma A, Ollivier M. The joint line convergence angle (JLCA) correlates with intra-articular arthritis. Knee Surg Sports Traumatol Arthrosc 2023; 31:5673-5680. [PMID: 37884727 DOI: 10.1007/s00167-023-07616-4] [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] [Received: 07/28/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023]
Abstract
PURPOSE Knees with unicompartmental varus osteoarthritis (OA) usually display a combination of tibiofemoral bony deformity and increased joint line convergence angle (JLCA). The JLCA is a product of intra-articular deformity and lateral soft tissue laxity. This study aims to define the correlation between the JLCA and progression of OA. METHODS A retrospective radiological analysis of 501 patients, who underwent either high tibial osteotomy (HTO) or unicompartmental knee arthroplasty (UKA), was performed. The preoperative OA grade was reported based on the Ahlbäck and the Kellgren-Lawrence (KL). The hip-knee-ankle angle (HKA), the medial proximal tibial angle (MPTA), the mechanical lateral distal femoral angle (mLDFA) and the joint line convergence angle (JLCA) were recorded. The primary outcome was the relationship between the JLCA values and the OA grade. The secondary outcomes were comparing the JLCA and other alignment parameter values between HTO and UKA groups. RESULTS A total of 501 (59.3% females n = 297) cases were included, comprising 293 cases of HTO and 208 cases of UKA. Patients had a mean age of 57.63 ± 8.97 years, a mean BMI of 28.37 ± 7.39 kg/m2. Patients with Ahlbäck grade 2 represented 49.3% of all patients (n = 247) and patients with KL grade 3 represented 54.7% of all patients (n = 274). A high JLCA was observed in both groups. The reported mean JLCA in the UKA group was 3.69 ± 2.1°, and in the HTO group was 2.93 ± 1.82. There was a significant association between the increase in the JLCA and the progression of OA based on both the Ahlbäck and KL grades (both p values < 0.001). The mean JLCA in patients with Ahlbäck grades 1 and 4 was 1.48 ± 1.32°, and 7 ± 0.93°, respectively. The mean JLCA in patients with KL grades 1 and 4 was 1.77 ± 1.42°, and 4.89 ± 1.73°, respectively. The mean recorded preoperative HKA angle in the UKA group was 175.06 ± 3.08°, and in the HTO group was 173.26 ± 3.02°, whereas the mean MPTA was 88.63 ± 1.72° for the UKA group and 89.31 ± 2.29° for the HTO group. CONCLUSION The JLCA progressively increases with osteoarthritis progression in patients with unicompartmental varus knee osteoarthritis. The JLCA can potentially be used as a grading parameter for osteoarthritis progression akin to Ahlbäck and Kellgren-Lawrence grading systems.
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Affiliation(s)
- Ahmed Mabrouk
- Mid Yorkshire Teaching Hospitals, Yorkshire, UK
- Institute for Locomotion, Aix-Marseille University, CNRS Sainte-Marguerite Hospital, APHM, Marseille, ISM, France
| | - Jae-Sung An
- Institute for Locomotion, Aix-Marseille University, CNRS Sainte-Marguerite Hospital, APHM, Marseille, ISM, France
| | - Loddo Glauco
- Institute for Locomotion, Aix-Marseille University, CNRS Sainte-Marguerite Hospital, APHM, Marseille, ISM, France
| | - Christophe Jacque
- Institute for Locomotion, Aix-Marseille University, CNRS Sainte-Marguerite Hospital, APHM, Marseille, ISM, France
| | | | | | - Matthieu Ollivier
- Institute for Locomotion, Aix-Marseille University, CNRS Sainte-Marguerite Hospital, APHM, Marseille, ISM, France.
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Wang H, Man Q, Gao Y, Xu L, Zhang J, Ma Y, Meng Q. The efficacy of medial meniscal posterior Root tear Repair with or without high tibial osteotomy: a systematic review. BMC Musculoskelet Disord 2023; 24:464. [PMID: 37280599 DOI: 10.1186/s12891-023-06520-9] [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: 01/19/2023] [Accepted: 05/11/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Medial meniscal posterior root tear (MMPRTs) is a common lesion of the knee joint, and repair surgery is a well-established treatment option. However, patients with obvious varus alignment are at an increased risk for MMPRT and can suffer from a greater degree of medial meniscus extrusion, which leads to the development of osteoarthritis following repair. The efficacy of high tibial osteotomy (HTO) as a means of correcting this malformation, and its potential benefits for MMPRT repair, remains unclear. PURPOSE To explore whether HTO influenced the outcome of MMPRT repair in clinical scores and radiological findings. STUDY DESIGN Systematic review. METHODS According to the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses) guidelines, we searched PubMed, Embase, Web of Science, and the Cochrane Library databases for studies reporting the outcomes of MMPRT repair and extracted data about characteristics of patients, clinical functional scores and radiologic outcomes. One reviewer extracted the data and 2 reviewers assessed the risk of bias and performed a synthesis of the evidence. Articles were eligible if they reported the results of MMPRT repair with exact mechanical axis (registered in the International Prospective Register of Systematic Reviews, CRD42021292057). RESULTS Fifteen studies with 625 cases of high methodological quality were identified. Eleven studies were assigned to the MMPRT repair group (M) with 478 cases performing MMPRT repair only, and others belonged to the MMPRT repair and HTO group (M and T) performing HTO and MMPRT repair. Most of the studies had significantly improved clinical outcome scores, especially in M groups. And the radiologic outcomes showed that the osteoarthritis deteriorated in both groups with similar degree in about 2-year follow-up. CONCLUSION HTO is a useful supplement in treating MMPRT patients with severe osteoarthritis and the clinical and radiological outcomes were similar with MMPRT repair alone. Which would be better for patients' prognosis generally, performing MMPRT repair alone or a combination of HTO and MMPRT repair, was still controversial. We suggested taking K-L grade into account. Large-scale randomized control studies were called for in the future to help make better clinical decisions. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Hangle Wang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China
- Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Qian Man
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China
- Peking Unversity First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, People's Republic of China
| | - Yitian Gao
- Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Lingyi Xu
- Peking Unversity First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, People's Republic of China
| | - Jingwei Zhang
- Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, People's Republic of China
| | - Yong Ma
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China.
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, People's Republic of China.
| | - Qingyang Meng
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China.
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, People's Republic of China.
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Iseki T, Iseki T, Kanto R, Onishi S, Yoshiya S, Tachibana T, Nakayama H. Efficacy of intravenous tranexamic acid administration in medial opening-wedge distal tibial tuberosity osteotomy (MOWDTO) for varus knee osteoarthritis: a randomized control trial. J Orthop Surg Res 2023; 18:178. [PMID: 36890541 PMCID: PMC9996975 DOI: 10.1186/s13018-023-03666-z] [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: 09/13/2022] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND This randomized controlled study was undertaken to investigate the efficacy of intravenous tranexamic acid (TXA) administration in reducing perioperative blood loss in patients undergoing medial opening-wedge distal tibial tuberosity osteotomy (MOWDTO). It was hypothesized that TXA would reduce perioperative blood loss in MOWDTO. METHODS A total of 61 knees in 59 patients who underwent MOWDTO during the study period were randomly assigned to either of the groups with intravenous TXA administration (TXA group) or without TXA administration (control group). In the TXA group, patients received 1000 mg of TXA intravenously before skin incision and 6 h after the first dose. The primary outcomes was the volume of perioperative total blood loss which calculated using the blood volume and hemoglobin (Hb) drop. The Hb drop was calculated as the difference between preoperative Hb and postoperative Hb at days 1, 3, and 7. RESULTS The perioperative total blood loss was significantly lower in the TXA group (543 ± 219 ml vs. 880 ± 268 ml, P < 0.001). The Hb drop was significantly lower at postoperative days 1, 3 and 7 in the TXA group than in the control group (day 1: 1.28 ± 0.68 g/dl vs. 1.91 ± 0.69 g/dl, P = 0.001; day 3: 1.54 ± 0.66 g/dl vs. 2.69 ± 1.00 g/dl, P < 0.001; day 7: 1.74 ± 0.66 g/dl vs. 2.83 ± 0.91 g/dl, P < 0.001). CONCLUSION Intravenous TXA administration in MOWDTO could reduce the perioperative blood loss. Trial registration The study was approved by the institutional review board. (Registered on 26/02/2019 Registration Number 3136). Level of Evidence Level I, randomized controlled trial.
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Affiliation(s)
- Takuya Iseki
- Department of Orthopaedic Surgery, Hyogo Medical University, 1-1 Mukogawa-Cho, Nishinomiya City, Hyogo, 663-8501, Japan.
| | - Tomoya Iseki
- Department of Orthopaedic Surgery, Hyogo Medical University, 1-1 Mukogawa-Cho, Nishinomiya City, Hyogo, 663-8501, Japan
| | - Ryo Kanto
- Department of Orthopaedic Surgery, Hyogo Medical University, 1-1 Mukogawa-Cho, Nishinomiya City, Hyogo, 663-8501, Japan
| | - Shintaro Onishi
- Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, 1-4 Ohama-Cho, Nishinomiya City, Hyogo, 662-0957, Japan
| | - Shinichi Yoshiya
- Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, 1-4 Ohama-Cho, Nishinomiya City, Hyogo, 662-0957, Japan
| | - Toshiya Tachibana
- Department of Orthopaedic Surgery, Hyogo Medical University, 1-1 Mukogawa-Cho, Nishinomiya City, Hyogo, 663-8501, Japan
| | - Hiroshi Nakayama
- Department of Orthopaedic Surgery, Hyogo Medical University, 1-1 Mukogawa-Cho, Nishinomiya City, Hyogo, 663-8501, Japan
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Nakayama H, Kanto R, Onishi S, Amai K, Ukon R, Tachibana T, Yoshiya S, Iseki T, Morimoto S, Iseki T. Preoperative Ahlbäck radiographic classification grade significantly influences clinical outcomes of double level osteotomy for osteoarthritic knees with severe varus deformity. J Exp Orthop 2023; 10:5. [PMID: 36695905 PMCID: PMC9877267 DOI: 10.1186/s40634-023-00573-4] [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: 11/03/2022] [Accepted: 01/12/2023] [Indexed: 01/26/2023] Open
Abstract
PURPOSE The purpose of this study was to examine the relationship between preoperative Ahlbäck radiographic classification grade and the clinical outcomes of double level osteotomy (DLO) performed for osteoarthritic knees with severe varus deformity. METHODS The study population comprised a consecutive series of 99 knees (68 patients) for which DLO was performed and follow-up results for a minimum of two years were available. The Ahlbäck radiographic classification system was used to determine the osteoarthritic grade. The following radiological parameters for alignment and bone geometry were measured: mechanical lateral distal femoral angle (mLDFA), mechanical medial proximal tibial angle (mMPTA), joint-line convergence angle (JLCA), and mechanical tibiofemoral angle (mTFA). Clinical results were assessed using the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the International Knee Documentation Committee (IKDC) subjective score preoperatively and at 2 years after surgery. Difference between preoperative and postoperative measurements as well as relationship between Ahlbäck grade and radiological/clinical results were statistically assessed. RESULTS The average age of the study participants was 60.9 ± 6.2 years and the mean follow-up period was 45.4 ± 15.2 months. Each of the radiological parameters exhibited preoperative abnormal values. Knees with Ahlbäck grade 3 and 4 osteoarthritis exhibited significantly greater JLCA and mTFA than grade 1 knees. Two years post-surgery, all radiological parameter values measured within a normal range. Clinical evaluation showed significant improvement in KOOS after surgery. Analysis of the relationship between Ahlbäck grade and clinical score showed that the 2-year postoperative KOOS scores in grade 3 and 4 osteoarthritic knees were significantly lower than grade 1 knees (with the mean 2-year KOOS scores of 350.0 ± 79.9, 317.9 ± 78.3, and 420.2 ± 42.9, respectively). CONCLUSIONS While DLO may produce significant radiological and clinical improvement in knees with joint space obliteration, Ahlbäck grade 3 and 4 osteoarthritic knees associated with larger JLCA and mTFA showed less satisfactory clinical results compared to grade 1 knees. LEVEL OF EVIDENCE IV case series.
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Affiliation(s)
- Hiroshi Nakayama
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
| | - Ryo Kanto
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
| | - Shintaro Onishi
- Nishinomiya Kaisei Hospital, Ohama-Cho Nishinomiya City, Hyogo, 662-0957 Japan
| | - Kenta Amai
- grid.510255.60000 0004 0631 9872Osaka Kaisei Hospital, Miyahara Yodogawa Ward, Osaka City, Osaka, 532-0003 Japan
| | - Ryosuke Ukon
- grid.510255.60000 0004 0631 9872Osaka Kaisei Hospital, Miyahara Yodogawa Ward, Osaka City, Osaka, 532-0003 Japan
| | - Toshiya Tachibana
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
| | - Shinichi Yoshiya
- Nishinomiya Kaisei Hospital, Ohama-Cho Nishinomiya City, Hyogo, 662-0957 Japan
| | - Takuya Iseki
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
| | - Shota Morimoto
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
| | - Tomoya Iseki
- grid.272264.70000 0000 9142 153XDepartment of Orthopaedic Surgery, Hyogo Medical University, Mukogawa-Cho, Nishinomiya City, Hyogo, 653-8501 Japan
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Wang X, Zhang R, Zheng X, Yu Y, Xu J, Kang Q. Geometrical analysis of the opening gap after tibial condylar valgus osteotomy for proper hinge point selection. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1267. [PMID: 36618801 PMCID: PMC9816837 DOI: 10.21037/atm-22-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 09/13/2022] [Indexed: 12/09/2022]
Abstract
Background Preoperative deformity and hinge position are associated with the magnitude of the gap opening during corrective osteotomy. A larger opening gap angle is associated with a higher risk of complications. This cross-sectional study sought to identify a suitable hinge position that results in the smallest opening angle during tibial condylar valgus osteotomy (TCVO). Methods The data of 66 arthritic knees treated by TCVO were included, comprising 16 knees with the hinge points selected medial to the center (group M), 21 knees with the hinge points selected at the center (group C), and 29 knees with the hinge points selected lateral to the center of the intercondylar eminence (group L). The opening gap angles and the correction amounts of the medial proximal tibial angle (ΔMPTA) were compared among the 3 groups to identify the preliminary relationship between the hinge positions and the opening gap angle. A simplified geometric model with the hinge positions selected at the medial beak, the center, and the lateral beak of the intercondylar eminence was constructed to simulate the realignment process. Several anatomical points were allocated as Cartesian coordinates. The opening gap angle with different hinge positions was mathematically formulated with MATLAB (MathWorks, Natick, MA, USA). Results The average ΔMPTAs were 9.4±2.9°, 9.4±3.5°, and 9.3±3.0° in groups L, C, and M, respectively. The opening angle of the osteotomy gap was the largest in group M and the smallest in group L (29.7±11.1° and 16.9±5.3°; P<0.01). The comparison of the opening angle per the ΔMPTA revealed a similar pattern. The simulated realignment process indicated that the hinge point at the lateral beak of the intercondylar eminence led to the smallest opening angle. The opening angle during TCVO was mathematically derived in terms of the ΔMPTA, the position of the intersection of the pre- and postoperative joint lines, and the position of the hinge point. Conclusions The hinge point at the lateral beak of the intercondylar eminence results in the smallest opening angle and may be suitable for TCVO.
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Capella M, Risitano S, Sabatini L, Faccenda C, Barberis L, Camazzola D, Bosco F, Giustra F, Massè A. Tibial condylar valgus osteotomy for the treatment of intra-articular varus deformity of the knee. ANNALS OF JOINT 2022; 7:37. [PMID: 38529161 PMCID: PMC10929301 DOI: 10.21037/aoj-22-19] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/08/2022] [Indexed: 03/27/2024]
Abstract
The increasing incidence and distribution of primary and post-traumatic knee osteoarthritis (OA) in the young, active population has renewed interest in joint-preserving procedures. High tibial osteotomy (HTO) represents the most common treatment for medial knee OA associated with varus tibial deformity. However, deformities may also be related to intra-articular defects that an extra-articular procedure could not correct. The tibial condylar valgus osteotomy (TCVO) represents an intra-articular surgical technique for treating advanced medial knee OA with lateral joint subluxation. Currently, only a few papers with small samples and limited follow-up report the use of TCVO for the treatment of intra-articular deformities. Indications and operative techniques are various and not standardized. After an extensive search of PubMed, Scopus and Cochrane library, the main purpose of this paper is to summarize and discuss the indications, surgical techniques, and outcomes of intra-articular osteotomies while also reporting the preoperative planning and surgical procedure performed at our institution. These characteristics allow earlier weight-bearing and faster complete recovery. TCVO is an effective procedure to correct lower limbs' intra-articular defects from degenerative conditions developmental and post-traumatic deformities. This surgical technique, working at the intra-articular level, leads to some benefits related to restoring joint congruence and stability by realigning the axis of the lower limb and reducing the lateral joint subluxation. Moreover, the improved valgisation and lateralization of the mechanical axis and the limitation of the osteotomy to the medial condyle led to a better load distribution to the not osteotomy-involved compartment.
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Affiliation(s)
- Marcello Capella
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Salvatore Risitano
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Luigi Sabatini
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Carlotta Faccenda
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Luca Barberis
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Daniele Camazzola
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Francesco Bosco
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Fortunato Giustra
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Alessandro Massè
- Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital, AOU Città della Salute e della Scienza, University of Turin, Turin, Italy
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10
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Liu Y, Li R, Zhan Y, Xie X, Luo C. Combined Proximal Tibial Osteotomy for Adult Kashin-Beck Disease with Severe Varus Knee Osteoarthritis: Case Report and Literature Review. Orthop Surg 2022; 14:3441-3447. [PMID: 36220786 PMCID: PMC9732621 DOI: 10.1111/os.13520] [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: 09/20/2021] [Revised: 08/14/2022] [Accepted: 08/24/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Kashin-Beck disease (KBD) is an endemic, chronic osteoarthropathy that seriously affects joint function and can lead to severe knee deformity. Osteotomy is considered to be one of the effective methods for the treatment of this disease. Therefore, we designed a novel type of osteotomy named combined proximal tibial osteotomy (CPTO), which combines the characteristics of opening-wedge high tibial osteotomy and tibial condylar valgus osteotomy. CASE PRESENTATION We report the case of a 48-year-old male with knee pain and varus deformity who was diagnosed with KBD and varus knee osteoarthritis (Kellgren-Lawrence stage IV). Considering the patient's relatively young age, a varus deformity of the right knee of 16.79°, and an intra-articular instability, we performed a CPTO treatment. In this procedure, we performed an L-shaped osteotomy from the medial edge of the proximal tibia to the intercondylar eminence and an osteotomy from the medial side of the proximal tibia to the lateral side through the same incision, to adjust the leg alignment and the congruity of the joint by valgus correction. At 29 months follow-up, this patient achieved satisfactory results, with a varus right knee of 2.87°. There was significant improvement in his right knee function, pain, and joint stability. CONCLUSIONS CPTO may be an acceptable treatment for KBD patients with severe knee varus deformity and intra-articular instability. It can be considered as an alternative treatment, especially for patients with advanced osteoarthritis needing knee preservation.
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Affiliation(s)
- Yunfei Liu
- Department of OrthopaedicsThe Affiliated Suzhou Science & Technology Town Hospital of Nanjing Medical UniversitySuzhouChina
| | - Ruiyang Li
- Department of Orthopaedic SurgeryShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghaiChina
| | - Yu Zhan
- Department of Orthopaedic SurgeryShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghaiChina
| | - Xuetao Xie
- Department of Orthopaedic SurgeryShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghaiChina
| | - Congfeng Luo
- Department of Orthopaedic SurgeryShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghaiChina
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11
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Wang Y, Luo Y, Min L, Zhou Y, Wang J, Zhang Y, Lu M, Duan H, Tu C. The West China Hospital radiographic classification for fibrous dysplasia in femur and adjacent bones: A retrospective analysis of 205 patients. Orthop Surg 2022; 14:2096-2108. [PMID: 35924702 PMCID: PMC9483050 DOI: 10.1111/os.13404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 02/05/2023] Open
Abstract
Objective This study aims to investigate the reliability and clinical outcome of a newly developed classification system for patients with fibrous dysplasia (FD) of the femur and adjacent bones, optimizing its evaluation and management. Methods A total of 205 patients (121 female and 84 male) with FD in the femur and adjacent bones were included in this retrospective study. All affected femurs were measured and treated based on this classification at our institution between 2009 and 2019. Based on previous studies and extensive clinical follow‐up, we cautiously proposed the West China Hospital radiographic classification for FD in femur and adjacent bones following corresponding treatment options. There are five types with five radiographic features, including proximal femur bone loss, coxa vara, femoral shaft deformity, genu valgum, and hip arthritis. The intraobserver and interobserver reproducibility of this classification was assessed by four observers using the Cohen kappa statistic. The clinical outcome was evaluated using the criteria of Guille. Results At a median follow‐up of 60 months (range 6–120), 205 patients (median 34.8 years old, range 18–73 years old) were categorized into the following five types: Type I 31.7%, Type II 30.2%, Type III 20.5%, Type IV 10.2%, and Type V 7.3%. The mean interobserver and intraobserver kappa scores were 0.85 (range 0.77–0.89) and 0.85 (range 0.79–0.92), respectively. For clinical outcomes, there was no significant difference in the postoperative Guille score for Type I patients (mean 9.01 ± 1.22). There was a significant increase in the postoperative Guille score in Type II, III, IV, and V, compared to the preoperative values (P < 0.01). For complications, two Type III patients reported pain, and one Type III patient had mild‐to‐moderate Trendelenburg gait. One Type IV patient had a mild Trendelenburg gait. And two Type V patients still had mild limping. Conclusion This classification is reproducible and serves as a tool for evaluating and treating FD in the femur and adjacent bones. Therefore, we recommend this classification for the diagnosis and treatment of FD‐related deformities in the femur and adjacent bones.
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Affiliation(s)
- Yitian Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Yi Luo
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Li Min
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Yong Zhou
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Jie Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Yuqi Zhang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Minxun Lu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Hong Duan
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Chongqi Tu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, P. R. China.,Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
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12
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Open wedge osteotomy of medial tibial condyle gives good results in management of neglected diagonal lesions of proximal tibia. J Clin Orthop Trauma 2022; 31:101945. [PMID: 35860440 PMCID: PMC9293627 DOI: 10.1016/j.jcot.2022.101945] [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: 06/04/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Depressed fractures of anteromedial tibial plateau are often underappreciated and treated inadequately. When these fractures are accompanied by injuries of posterior cruciate ligament and postero-lateral corner, they are called as diagonal lesions. There are very few publications on the management of such injuries in chronic stage. The purpose of our study is to describe our results in management of these neglected fractures using open wedge osteotomy of medial tibial condyle (OWOMTC). METHODS This is a retrospective study of ten patients. KOOS score and Tegner and Lysholm score were recorded preoperatively and at three, six, twelve and twenty four months after surgery to assess the functional outcome. Medial proximal tibial angle (MPTA) and tibial slope were recorded before and after surgery. RESULTS All cases had posterior cruciate ligament (PCL) and posterolateral corner (PLC) injuries. There was no anterior cruciate ligament (ACL) injury. MPTA was corrected from mean 76.2° ± 3.7° to mean 86.4° ± 3.2°. Mean tibial slope was increased from -4° ± 3° to mean tibial slope of 7.6° ± 2.2°.Tegner and Lyshom score improved from mean of 38-88 (p < .05) at final follow-up. KOOS score improved from mean of 32-86 (p < .05) at final follow-up. Union was achieved in all the cases. None of the cases required ligament reconstruction. CONCLUSIONS We conclude that OWOMTC is a useful method to manage neglected depressed fractures of anteromedial tibial plateau accompanied by PCL and PLC injury (diagonal injury). This procedure can restore limb alignment, congruency and stability of knee joint without any soft tissue reconstruction and change in the patellofemoral kinematics.
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13
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Zhao G, Li D, Ji W, Luo C. Biomechanical evaluation of combined proximal tibial osteotomy for varus knee osteoarthritis implanted novel designed plate system: Finite element analysis. Injury 2022; 53:2416-2423. [PMID: 35618538 DOI: 10.1016/j.injury.2022.05.012] [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: 10/19/2021] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Combined proximal tibial osteotomy (CPTO) is an innovative and effective procedure for correcting varus knee osteoarthritis (VKOA) with intra- and extra-articular deformity. Here, we designed a novel internal fixation plate system for CPTO and assessed the biomechanical strength of the bone-implant. METHODS Our newly designed CPTO internal fixation plate system included a specialized plate shape, combination holes, locking screw holes, screw position, and size of fixation. The biomechanical performance of this plate system in CPTO treatment was compared via finite element analysis (FEA) to traditional Tomofix devices implanted in the opening-wedge high tibial osteotomy (OWHTO), tibial condylar valgus osteotomy (TCVO), and CPTO. RESULTS The tibial wedge stiffness and displacement after CPTO implantation of the novel internal plate fixation increased by 9.6%, which was -65% higher than the CPTO with the Tomofix system. The average stress of the bone, plate, and screws in the CPTO implanted the novel designed plate system compared to the Tomofix system decreased by 12.7%, 1.9%, and 20.3 %, respectively. The device maximum stress and wedge stiffness after CPTO with the novel plate system versus traditional OWHTO and TCVO with the Tomofix system were 255.7 MPa, 204 MPa, 130.4 MPa, and 678.9 N/mm, 660.3 N/mm, 1626.0 N/mm, respectively. CONCLUSIONS The novel internal fixation plate system usage during CPTO exhibited similar bone-implant biomechanical strength, compared to OWHTO, but with enhanced construct stability.
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Affiliation(s)
- Gaiping Zhao
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China.
| | - Dongyan Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Weiping Ji
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Congfeng Luo
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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14
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Tibial Condylar Valgus Osteotomy Combined With Medial Open-Wedge Distal Tuberosity Tibial Osteotomy. Arthrosc Tech 2022; 11:e569-e575. [PMID: 35493060 PMCID: PMC9051885 DOI: 10.1016/j.eats.2021.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/10/2021] [Indexed: 02/03/2023] Open
Abstract
Severe varus deformity in osteoarthritic knees is attributed not only to bony deformity but also to intra-articular deformity as a result of medial joint space narrowing with lateral joint space widening (increased joint line convergence angle). In such knees, correction of bony deformity by high tibial osteotomy (HTO) alone may not be capable of restoring physiological joint geometry and biomechanics. Tibial condylar valgus osteotomy (TCVO), an L-shaped osteotomy in the medial tibial condyle, has been proposed to improve articular stability and congruity by elevating the medial tibial joint line and addressing the articular component of the deformity; however, its surgical efficacy for correction of the valgus deformity is limited. Therefore a procedure combining HTO and TCVO can be a reasonable option to achieve restoration of the knee joint physiology in such situations. In our current practice, medial open-wedge distal tuberosity tibial osteotomy (MOW-DTO) has been the procedure of primary option among the HTO procedures to avoid patellofemoral overload which could be an inherent problem in medial open-wedge HTO. In this article, the surgical rationale and the combined procedure of TCVO and MOW-DTO are described.
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15
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Role of the Ilizarov fixator in high tibial osteotomy. J Clin Orthop Trauma 2021; 25:101724. [PMID: 34993051 PMCID: PMC8704438 DOI: 10.1016/j.jcot.2021.101724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 11/21/2022] Open
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16
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Tibial Condyle Valgus Osteotomy for Ipsilateral Knee Osteoarthritis after Hip Arthrodesis. Case Rep Orthop 2021; 2021:6443618. [PMID: 34745676 PMCID: PMC8570898 DOI: 10.1155/2021/6443618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022] Open
Abstract
We report a case of tibial condylar valgus osteotomy (TCVO) for ipsilateral knee osteoarthritis (OA) after hip arthrodesis. A 58-year-old woman developed right purulent hip arthritis at one month of age and underwent right hip fusion at 16 years old. She visited our department at the age of 57 because her right knee joint pain worsened. The range of motion for her right knee was 80° and -5° of flexion and extension, respectively, and she experienced medial weight-bearing pain. A plain X-ray image showed that the right knee joint had end-stage knee OA with a bone defect inside the tibia, and the tibial plateau shape was the pagoda type. There was a marked instability in her right knee with a valgus of 9° and varus of 7° on stress photography. She underwent TCVO on her right knee and was allowed full load four weeks after surgery. Computed tomography imaging showed bone union nine months after surgery. Two years after the operation, there was no correction loss, and she could walk independently without pain. In general, total knee arthroplasty (TKA) is indicated for end-stage knee OA; however, there are problems, such as early loosening due to the increased mechanical load on the knee after hip OA. In this case, since a good course was obtained, TCVO is considered a treatment option for terminal knee OA after hip arthrodesis.
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17
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Teramoto T, Harada S, Takenaka N, Matsushita T. Tibial condylar valgus osteotomy (TCVO): Surgical technique and clinical results for knee osteoarthritis with varus deformity. J Clin Orthop Trauma 2021; 22:101589. [PMID: 34540585 PMCID: PMC8441078 DOI: 10.1016/j.jcot.2021.101589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/01/2022] Open
Abstract
Tibial condylar valgus osteotomy (TCVO) is an intra-articular proximal tibial osteotomy developed in 1989 and has since been used for the treatment of knee osteoarthritis (OA) associated with genu varum. This article describes the surgical technique and clinical results of TCVO. TCVO can be used for all grades of varus knee OA in patients of any age. he preoperative range of movement should be at least 90°. Preoperative screening showed varus-valgus instability due to an intra-articular deformity of the proximal tibia. Using intraoperative image intensification, a sagittally oriented "L"-shaped osteotomy is made from the medial to the tibial tuberosity to the center of the tibial plateau between the medial and lateral tibial spines. The separation of the osteotomy using the lamina spreader is gradually increased using an image intensifier guidance until the articular surface of the lateral tibial plateau comes in contact with the articular surface of the lateral femoral condyle. Adequate correction is indicated by parallelism of the lateral tibial plateau and a line tangential to the distal convexity of the lateral femoral condyle on an anteroposterior (AP) image and the elimination of the valgus instability with the knee in extended position. A "T"-plate (locking or non-locking plate or circular external fixator) is used to fix the osteotomy in the corrected position. Synthetic or autologous bone grafts can be used. We used the Japanese Orthopaedic Association score to evaluate the patient's function and also measured the %MAD, medial plateau opening angle, medial plateau angle, and lateral plateau opening angle on an AP view of the long length roentgenogram of the lower limb (standing position). The JOA score, radiologically measured values, and instability of the knee joint remarkably improved.
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Affiliation(s)
- Tsukasa Teramoto
- Corresponding author. Department of Traumatology, Fukushima Medical University, Director Trauma & Reconstruction Center, Southern TOHOKU General Hospital, 7-115 Yatsuyamada, Koriyama, Fukushima, 963-8563, Japan.
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18
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Peng H, Ou A, Huang X, Wang C, Wang L, Yu T, Zhang Y, Zhang Y. Osteotomy Around the Knee: The Surgical Treatment of Osteoarthritis. Orthop Surg 2021; 13:1465-1473. [PMID: 34110088 PMCID: PMC8313165 DOI: 10.1111/os.13021] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 12/22/2022] Open
Abstract
Osteoarthritis causes joint pain and functional disorder, of which knee osteoarthritis is the most common. Nowadays, clinically effective treatments mainly include conservative treatment, arthroplasty, and osteotomy. However, conservative treatment only offers symptomatic relief and arthroplasty is limited to the patients with a moderate to severe degree of osteoarthritis. For relatively young patients who require greater knee preservation, a surgical treatment with low operation trauma and revision rate is needed. Osteotomy around the knee, based on the notion of “knee preservation,” has been chosen as an alternative surgical treatment. Cutting and realigning the bones corrects the mechanical line of lower limb force bearing. As such, osteotomy around the knee retains normal anatomical structure and obtains good functional recovery of the knee joint. The techniques of osteotomy around the knee includes anti‐varus deformity and anti‐valgus deformity osteotomy, aiming to reallocate the force bearing in the compartment of the knee joint. By choosing the surgical section of the lower limbs, the osteotomy around the knee can achieve the correction of mechanical axis, such as the high tibial osteotomy (HTO), proximal fibular osteotomy (PFO), and distal femur osteotomy (DFO). Numerous modified techniques have been developed to meet the demands of patients based on traditional methods. These modified osteotomy have their own advantages and indications. This paper aims to guide clinical treatment by reviewing different types of osteotomies, and their effects, that have been studied and applied widely in clinical practices.
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Affiliation(s)
- Haining Peng
- Department of Sports Medicine, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Aichun Ou
- Department of Operating Room, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaohong Huang
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, China
| | - Chen Wang
- Department of Sports Medicine, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lei Wang
- Department of Sports Medicine, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tengbo Yu
- Department of Sports Medicine, Affiliated Hospital of Qingdao University, Qingdao, China.,Institute of Sports Medicine and Rehabilitation, Qingdao University, Qingdao, China
| | - Yingze Zhang
- Department of Orthopedics, The Third Hospital of Hebei Medical University, Shijiazhuang, China.,Department of Orthopedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi Zhang
- Department of Sports Medicine, Affiliated Hospital of Qingdao University, Qingdao, China.,Institute of Sports Medicine and Rehabilitation, Qingdao University, Qingdao, China.,Shandong Institute of Traumatic Orthopedics, Affiliated Hospital of Qingdao University, Qingdao, China
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19
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Kim JE, Kim DH, Lee JI, Choi HG, Jung YS, Lee SH, Lee YS. Difference of preoperative varus-valgus stress radiograph is effective for the correction accuracy in the preoperative planning during open-wedge high tibial osteotomy. Knee Surg Sports Traumatol Arthrosc 2021; 29:1035-1044. [PMID: 32462268 DOI: 10.1007/s00167-020-06076-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/20/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE This study aimed to evaluate (1) the efficacy of varus-valgus stress radiographs to adjust the preoperative soft-tissue imbalance and (2) ascertain whether varus-valgus stress radiographs are effective for the correction accuracy in the preoperative planning of the opening wedge high tibial osteotomy (OWHTO). METHODS From February 2017 to December 2018, a total of 121 consecutive knees that underwent bi-planar OWHTO were enrolled in this retrospective analysis. Preoperative planning was performed using a weight-bearing line (WBL). Target WBL was determined according to the status of the medial compartments such as cartilage, meniscus, and preoperative arthritic grade. Preoperative varus-valgus stress radiographs were used to assess the preoperative mediolateral ligament imbalance. The final target correction length of the opening gap was determined by subtracting the difference between the varus-valgus stress radiographs (VVD). All patients were divided into two groups according to the preoperatively planned correction degree: (group A), smaller than average; (group B), larger than average. Patients were also divided into two other groups (VVD adjusted and neglected groups). RESULTS Groups A and B were 56 and 54 knees, respectively. The preoperatively planned correction lengths of the opening gap were 9.33 ± 1.5 and 14.16 ± 3.96 mm, respectively (p < 0.01). Mean values of the VVD were 0.85 ± 0.72, and 1.27 ± 1.78 mm, respectively (p < 0.01). Correction errors were 2.17 ± 2.06 and 3.52 ± 2.16%, respectively (p < 0.01). Planned and final correction degrees were also significantly larger (p < 0.01, and p < 0.01, respectively), because the preoperative WBL ratio was significantly smaller in the VVD adjusted group (p < 0.01). CONCLUSION The VVD values could reproduce the preoperative soft-tissue imbalance and it was more prominent as the correction degree increased. The strategy of subtracting the VVD as assumed soft-tissue imbalance in the preoperative planning worked well for the correction accuracy during OWHTO. LEVEL OF EVIDENCE Level IV, retrospective study.
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Affiliation(s)
- Ji Eui Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Dong Hyun Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Jae Ik Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Han Gyeol Choi
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - You Sun Jung
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Sang Hoon Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Yong Seuk Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea.
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Jansen MP, Besselink NJ, van Heerwaarden RJ, Custers RJH, Emans PJ, Spruijt S, Mastbergen SC, Lafeber FPJG. Knee Joint Distraction Compared with High Tibial Osteotomy and Total Knee Arthroplasty: Two-Year Clinical, Radiographic, and Biochemical Marker Outcomes of Two Randomized Controlled Trials. Cartilage 2021; 12:181-191. [PMID: 30758214 PMCID: PMC7970375 DOI: 10.1177/1947603519828432] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Both, knee joint distraction (KJD) and high tibial osteotomy (HTO) are joint-preserving surgeries that postpone total knee arthroplasty (TKA) in younger osteoarthritis (OA) patients. Here we evaluate the 2-year follow-up of KJD versus TKA and KJD versus HTO in 2 noninferiority studies. DESIGN Knee OA patients indicated for TKA were randomized to KJD (n = 20; KJDTKA) or TKA (n = 40). Medial compartmental knee OA patients considered for HTO were randomized to KJD (n = 23; KJDHTO) or HTO (n = 46). Patient-reported outcome measures were assessed over 2 years of follow-up. The radiographic joint space width (JSW) was measured yearly. In the KJD groups, serum-PIIANP and urinary-CTXII levels were measured as collagen type-II synthesis and breakdown markers. It was hypothesized that there was no clinically important difference in the primary outcome, the total WOMAC, when comparing KJD with HTO and with TKA. RESULTS Both trials were completed, with 114 patients (19 KJDTKA; 34 TKA; 20 KJDHTO; 41 HTO) available for 2-year analyses. At 2 years, the total WOMAC score (KJDTKA: +30.4 [95% CI 23.0-37.9] points; TKA: +42.4 [95% CI 38.1-46.8]; KJDHTO: +21.6 [95% CI 13.8-29.4]; HTO: +29.2 [95% CI 23.6-34.8]; all: P < 0.05) and radiographic minimum JSW (KJDTKA: +0.9 [95% CI 0.2-1.6] mm; KJDHTO: +0.9 [95% CI 0.5-1.4]; HTO: +0.6 [95% CI 0.3-0.9]; all: P < 0.05) were still increased for all groups. The net collagen type-II synthesis 2 years after KJD was increased (P < 0.05). Half of KJD patients experienced pin tract infections, successfully treated with oral antibiotics. CONCLUSIONS Sustained improvement of clinical benefit and (hyaline) cartilage thickness increase after KJD is demonstrated. KJD was clinically noninferior to HTO and TKA in the primary outcome.
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Affiliation(s)
- Mylène P. Jansen
- Rheumatology & Clinical Immunology,
University Medical Center Utrecht, Utrecht, The Netherlands,Mylène P. Jansen, Rheumatology &
Clinical Immunology, University Medical Center Utrecht, Heidelberglaan 100
(G02.228), Utrecht, 3584CX, The Netherlands
| | - Nick J. Besselink
- Rheumatology & Clinical Immunology,
University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ronald J. van Heerwaarden
- Centre for Deformity Correction and
Joint Preserving Surgery, Kliniek ViaSana, Mill, The Netherlands
| | - Roel J. H. Custers
- Department of Orthopedic Surgery,
University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter J. Emans
- Department of Orthopedics, Maastricht
University Medical Center, Maastricht, The Netherlands
| | - Sander Spruijt
- Department of Orthopedics,
HagaZiekenhuis, The Hague, The Netherlands
| | - Simon C. Mastbergen
- Rheumatology & Clinical Immunology,
University Medical Center Utrecht, Utrecht, The Netherlands
| | - Floris P. J. G. Lafeber
- Rheumatology & Clinical Immunology,
University Medical Center Utrecht, Utrecht, The Netherlands
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21
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Nakayama H, Kanto R, Onishi S, Kambara S, Ukon R, Amai K, Yoshiya S, Schröter S, Tachibana T, Iseki T. Cartilage repair examined by second-look arthroscopy following double-level osteotomy performed for osteoarthritic knees with severe varus deformity. Knee 2021; 29:411-417. [PMID: 33714928 DOI: 10.1016/j.knee.2021.02.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/18/2020] [Accepted: 02/18/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND The purpose of this study was to examine the status of cartilage repair by second-look arthroscopy following double-level osteotomy (DLO) performed for osteoarthritic knees with severe varus deformity. METHODS Forty-seven consecutive knees in 33 patients who underwent DLO were included in the study. The surgical technique used was a minimally invasive DLO procedure combining lateral closed-wedge distal femoral and medial open-wedge high tibial osteotomies. In the second-look arthroscopic evaluation, the following grading system proposed by Koshino was adopted: Stage A, no repair; stage B, pink fibrous tissue with or without partial coverage with white fibrocartilage; and stage C, total coverage with cartilage. The findings corresponding to stage B or C were considered as repaired. Arthroscopic assessment was performed for each compartment. Clinical outcomes were evaluated using the validated outcome measures. RESULTS The mean age at surgery was 62.8 ± 6.2 years (range: 45-75 years), and the mean time period from DLO to second-look arthroscopy was 17.1 ± 5.0 months (range: 12-33 months). Cartilage repair to some extent was identified in over 90% of the medial femoral and tibial condyles, and 12.8% of the patellar facet. As for clinical scores, both Knee Injury and Osteoarthritis Outcome Score (KOOS) and the International Knee Documentation Committee Subjective Knee Form (IKDC) subjective scores significantly improved after surgery (P < 0.01). CONCLUSIONS Evaluation of the present study subjects showed that DLO could induce cartilage repair in the majority of the affected femoral and tibial articular surfaces with significant clinical improvement. In the patellar facet, however, cartilage repair could be identified in only 12.8% of cases.
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Affiliation(s)
- Hiroshi Nakayama
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan.
| | - Ryo Kanto
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan
| | - Shintaro Onishi
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan
| | | | - Ryousuke Ukon
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan
| | - Kenta Amai
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan
| | - Shinichi Yoshiya
- Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, Japan
| | | | | | - Tomoya Iseki
- Department of Orthopaedic Surgery, Hyogo College of Medicine, Japan
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22
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Saito H, Yonekura A, Saito K, Shimada Y, Yamamura T, Sato T, Nozaka K, Kijima H, Fujii M, Kawano T, Murata S, Miyakoshi N. A new double level osteotomy procedure to restore a joint line and joint angles in severe varus osteoarthritis. - Double level osteotomy associated with tibial condylar valgus osteotomy (DLOTO). ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2020; 24:9-13. [PMID: 33457209 PMCID: PMC7787959 DOI: 10.1016/j.asmart.2020.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/09/2020] [Indexed: 11/17/2022]
Abstract
High tibial valgus osteotomy (HTO) is a well-established surgical procedure to correct a varus malalignment and treat medial compartment osteoarthritis. Recently, double level osteotomy (DLO) was recommended for extensive varus knees as a single level osteotomy (SLO) approach may create an excessive joint line obliquity and eventually result in a new bony deformity. However, a severe varus knee in cases of advanced osteoarthritis involves not only a bony deformity (extra-articular deformity) but also a medial joint space narrowing with a widened lateral joint space (intra-articular deformity). A DLO alone cannot reduce this intra-articular deformity. However, tibial condylar valgus osteotomy (TCVO) can complement DLO as to reduce this intra-articular deformity. This technical note describes a novel modified DLO procedure associated with TCVO which can restore a normal alignment and a joint line and achieve joint preservation even in cases of extensive varus osteoarthritis.
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Affiliation(s)
- Hidetomo Saito
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
- Corresponding author. Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan.
| | - Akihiko Yonekura
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kimio Saito
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
| | - Yoichi Shimada
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
| | - Toshiaki Yamamura
- Sapporo Sports Clinic, Chuo-ku Kita-1-jo, Nishi-2-Tyome, 060-0001, Sapporo, Japan
| | - Takahiro Sato
- Sapporo Sports Clinic, Chuo-ku Kita-1-jo, Nishi-2-Tyome, 060-0001, Sapporo, Japan
| | - Koji Nozaka
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
| | - Hiroaki Kijima
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
| | - Masashi Fujii
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
| | - Tetsuya Kawano
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
| | - Shohei Murata
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
- Akita Sports Arthroscopy and Knee Group (ASAKG), Japan
| | - Naohisa Miyakoshi
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, 010-8543, Akita, Japan
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23
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Ventura A, Legnani C, Terzaghi C, Macchi V, Borgo E. Unicompartmental Knee Replacement Combined to Anterior Cruciate Ligament Reconstruction: Midterm Results. J Knee Surg 2020; 33:1152-1156. [PMID: 31269529 DOI: 10.1055/s-0039-1692647] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A study was conducted to retrospectively evaluate the outcomes of combined medial unicompartmental knee replacement (UKR) and anterior cruciate ligament (ACL) reconstruction. The hypothesis was that this procedure would lead to satisfying results in patients affected by medial osteoarthritis and ACL insufficiency. Fourteen patients with ACL deficiency and concomitant medial compartment symptomatic osteoarthritis were treated from 2006 to 2010. Twelve of them were followed-up for an average time of 7.8 year (range: 6-10 years). Assessment included Knee Osteoarthritis Outcome score (KOOS), Oxford Knee score (OKS), American Knee Society scores (AKSS), Western Ontario and McMaster (WOMAC) index of osteoarthritis, Tegner's activity level, objective examination including instrumented laxity test with KT-1000 arthrometer, and standard X-rays. KOOS score, OKS, WOMAC index, and the AKSS improved significantly at follow-up (p < 0.001). There was no clinical evidence of instability in any of the knees as evaluated with clinical and instrumented laxity testing (p < 0.001). No pathologic radiolucent lines were observed around the components. In one patient, a total knee prosthesis was implanted due to the progression of signs of osteoarthritis in the lateral compartment 3 years after primary surgery. UKR combined with ACL reconstruction is an effective therapeutic option for the treatment of combined medial unicompartmental knee osteoarthritis and ACL deficiency and confirms subjective and objective clinical improvement up to 8 years after surgery. This study reflects level IV evidence.
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Affiliation(s)
- Alberto Ventura
- IRCCS Istituto Ortopedico Galeazzi, Sport Traumatology and Minimally Invasive Articular Surgery Center, Milano, Italy
| | - Claudio Legnani
- IRCCS Istituto Ortopedico Galeazzi, Sport Traumatology and Minimally Invasive Articular Surgery Center, Milano, Italy
| | - Clara Terzaghi
- Istituto Clinico Villa Aprica, Department of Orthopaedics, Como, Italy
| | - Vittorio Macchi
- IRCCS Istituto Ortopedico Galeazzi, Sport Traumatology and Minimally Invasive Articular Surgery Center, Milano, Italy
| | - Enrico Borgo
- IRCCS Istituto Ortopedico Galeazzi, Sport Traumatology and Minimally Invasive Articular Surgery Center, Milano, Italy
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24
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Kii S, Sonohata M, Matsumura Y, Ide S, Shimazaki T, Hashimoto A, Nagamine S, Nakashima T, Tsuruta T, Mawatari M. Simultaneous medial closed wedge distal femoral osteotomy combined with anterior cruciate ligament reconstruction: Report of 2 cases. J Orthop Sci 2020; 28:703-709. [PMID: 33109436 DOI: 10.1016/j.jos.2020.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/30/2020] [Accepted: 09/07/2020] [Indexed: 11/17/2022]
Affiliation(s)
- Sakumo Kii
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Motoki Sonohata
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
| | - Yosuke Matsumura
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Shuya Ide
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Takafumi Shimazaki
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Akira Hashimoto
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Satomi Nagamine
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Takema Nakashima
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Toshiyuki Tsuruta
- Tsuruta Orthopaedic Clinic, 1241-6 Katsu, Ushizu-Machi, Ogi City, Saga, 849-0306, Japan
| | - Masaaki Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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25
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Managing intra-articular deformity in high Tibial osteotomy: a narrative review. J Exp Orthop 2020; 7:65. [PMID: 32902758 PMCID: PMC7481321 DOI: 10.1186/s40634-020-00283-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/26/2020] [Indexed: 11/29/2022] Open
Abstract
The joint line convergence angle (JLCA) has a normal range between 0° to 2°, which increases in magnitude depending on the severity and stage of osteoarthritis in the knee. The JLCA represents the interaction of the intra-articular deformity arising from the osteoarthritis and the surrounding soft tissue laxity. Therefore, the JLCA has become a vital parameter in analysing the long leg alignment views for corrective planning before osteotomy surgery. Recent studies have considered the influence on how the preoperative JLCA is measured and its influence on achieving accurate postoperative desired correction in high tibial osteotomy surgery. The JLCA also reflects the influence of soft tissue laxity in a lower limb malalignment and many surgeons encourage it to be taken into account to avoid non physiological correction and/or overcorrection with negatively impacted postoperative patient outcome. This present review addressed how to obtain an accurate preoperative measurement of the JLCA, its influence on postoperative deformity analysis and how to reduce errors arising from an elevated preoperative JLCA. We have proposed a formula to help determine the value to subtract from the planned correction in order to avoid an overcorrection when performing a corrective osteotomy. Level of clinical evidence IV, narrative review.
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26
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Cheng CT, Luo CA, Chen YC. Biomechanical effects of screw orientation and plate profile on tibial condylar valgus osteotomy - Finite-element analysis. Comput Methods Biomech Biomed Engin 2020; 23:906-913. [PMID: 32478579 DOI: 10.1080/10255842.2020.1772763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Tibial condylar valgus osteotomy (TCVO) is a type of open wedge high tibial osteotomy for correcting intra-articular deformities of medial knee osteoarthritis. However, there are no implant design and related biomechanical investigations specifically for TCVO. This study aims to investigate the effects of the proximal screw direction and plate profile on the biomechanical behaviors of the TCVO construct. Based on computed tomography images, the tibia model with TCVO was simulated. Four variations (straight and contoured plate profile × convergent and divergent proximal screw direction) with two loading conditions (compressive loads and torsional load) were compared by finite-element method. Fracture risk and construct stability were chosen as the comparison indices. For both loading conditions, the fracture risk of screw, plate and bone was the lowest in straight plate with divergent screw direction (SD), while contoured plate with convergent screw direction (CC) was the highest. Similar results were found in construct stability, SD allowed the smallest micromotions of the L-shaped opening gap, but CC allowed the highest. Divergent screw direction can decrease fracture risk of all components and provide better construct stability, while contoured plate profile seems like to have converse effects. If stability is the major concern, straight plate with divergent screw is recommended for patients with heavy load demands. Contoured plate may be suitable for skinny patients that can reduce the soft tissue irritation.
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Affiliation(s)
- Chih-Ting Cheng
- Department of Orthopedic Surgery, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan
| | - Chu-An Luo
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.,Department of Precision Surgery Development, APlus Biotechnology Co., Ltd, Taipei, Taiwan
| | - Yi-Chih Chen
- Department of Orthopedics, Cathay General Hospital, Taipei, Taiwan
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27
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Ji W, Luo C, Zhan S, Zhan Y, Xie X, Zhang B. Combined proximal tibial osteotomy for varus osteoarthritis of the knee: Biomechanical tests and finite-element analyses. Knee 2020; 27:863-870. [PMID: 32046900 DOI: 10.1016/j.knee.2020.01.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/28/2019] [Accepted: 01/22/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND A special combined proximal tibial osteotomy (CPTO) was designed to correct varus osteoarthritis of the knee with severe intra-articular pathologies, which could not be fully corrected by opening-wedge high tibial osteotomy (OWHTO). The biomechanical strength of the CPTO bone-implant construct was evaluated and compared with those of existing osteotomy methods. METHODS Three variations of osteotomy including OWHTO, tibial condylar valgus osteotomy (TCVO), and CPTO were performed on synthetic bones with locking plate and screws. Wedge stiffness, wedge displacement, and load failure were measured by biomechanical tests. Three types of numerical tibial models were also constructed by three-dimensional model reconstruction software. The stability parameters of the three variations including wedge stiffness, wedge displacement, and stress distribution were further measured by finite-element analyses. RESULTS The biomechanical testing results revealed that the wedge stiffness, wedge displacement, and failure load of the CPTO construct were very close to those of the OWHTO construct. The numerical results of wedge stiffness and displacement showed good conformity to the previous biomechanical results. The stress distribution at the lateral hinge, the plate corner, and the holes of the CPTO construct were close to those of the OWHTO counterpart, while the stress distribution at the inter-condylar eminence of the tibia and at the middle region of the screws was close to those of the TCVO counterpart. CONCLUSIONS The CPTO construct can provide comparable strength for early mobilization and rehabilitation to that of the OWHTO construct.
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Affiliation(s)
- Weiping Ji
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Congfeng Luo
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Shi Zhan
- Department of Orthopedic Surgery and Orthopedic Biomechanical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yu Zhan
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xuetao Xie
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Binbin Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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28
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Kuwashima U, Yonekura A, Itoh M, Itou J, Okazaki K. Tibial condylar valgus osteotomy - indications and technique. J Exp Orthop 2020; 7:30. [PMID: 32405777 PMCID: PMC7221090 DOI: 10.1186/s40634-020-00247-5] [Citation(s) in RCA: 9] [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: 03/02/2020] [Accepted: 05/04/2020] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To describe the indications for, and surgical technique of, tibial condylar valgus osteotomy (TCVO). INDICATIONS TCVO is commonly performed in patients with middle-to-end-stage medial unicompartmental osteoarthritis. Among the most important TCVO indication criteria are the types of tibial plateau shape. The convex-type (also called "pagoda-type"), with over a 5° joint line convergence angle on the standing X-ray, meets the indication criteria for TCVO. SURGICAL TECHNIQUE An L-shaped osteotomy is performed from the medial side of the proximal tibia to the lateral beak of the intercondylar eminence. The apex of the L-shaped osteotomy line is on the medial border of the patellar tendon insertion. Surgeons should note the direction of the chisel (during the osteotomy) to the intercondylar eminence following fluoroscopic guidance. The posterior cortical bone is cut under a lateral view observation, and the crossed-leg position is adopted to prevent injury to the popliteal blood vessels. The spreader should be positioned at the posterior cortical bone to avoid increasing the tibial slope. The locking plate reliably stabilizes the osteotomy and helps shorten the period of postoperative rehabilitation. CONCLUSIONS TCVO adjusts varus deformity alongside joint congruity. Accurate identification of indications and a detailed surgical plan would ensure effective correction and proper alignment. Additional osteotomies are recommended in case of under-correction of the varus limb deformity. TCVO is an effective intervention in patients with advanced knee osteoarthritis and lateral joint laxity with the pagoda-type tibial plateau shape.
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Affiliation(s)
- Umito Kuwashima
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Akihiko Yonekura
- Department of Orthopaedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, 7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masafumi Itoh
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Junya Itou
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Ken Okazaki
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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29
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Goto N, Akasaki Y, Okazaki K, Kuwashima U, Iwasaki K, Kawamura H, Mizu-Uchi H, Hamai S, Tsushima H, Kawahara S, Nakashima Y. The influence of post-operative knee coronal alignment parameters on long-term patient-reported outcomes after closed-wedge high tibial osteotomy. J Orthop 2020; 20:177-180. [PMID: 32025144 DOI: 10.1016/j.jor.2020.01.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/26/2020] [Indexed: 01/07/2023] Open
Abstract
Background Both intra-articular and extra-articular knee alignment pathologies can affect clinical outcomes after high tibial osteotomy. The purpose of this study was to investigate post-operative knee coronal alignment parameters that affect long-term patient-reported outcomes after closed-wedge high tibial osteotomy (CW-HTO). Methods This study included 105 osteoarthritic knees that underwent CW-HTO. Long-term patient-reported outcomes were defined by the 2011 Knee Society Score (KSS) and were collected at an average follow-up of 10.2 years. Post-operative knee coronal alignment parameters, consisting of the femoral tibial angle (FTA), lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), tibial plateau inclination (TPI), and joint line convergence angle (JLCA), were measured using standing radiographs of the knee at an average follow-up of 11.0 months. The correlations between these parameters and KSS were then assessed by Spearman's correlation analysis. Comparisons of groups classified by MPTA and TPI cutoff values were performed by the Wilcoxon rank-sum test. Results Post-operative JLCA showed a significant negative correlation with two KSS sub-scores: satisfaction (R = -0.2232, P = 0.022) and total function (R = -0.2059, P = 0.035). There was no significant difference in any KSS sub-score between the "low" groups (MPTA and TPI less than 95 and 5°, respectively) and the "high" groups (MPTA and TPI greater than 98 and 7°, respectively). Conclusions Among knee coronal alignment parameters, a large post-operative residual JLCA, which is an intra-articular varus deformity, was independently associated with worsened long-term clinical outcomes after CW-HTO. Level of evidence Level Ⅳ, Retrospective cohort study.
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Affiliation(s)
- Norio Goto
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yukio Akasaki
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ken Okazaki
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Umito Kuwashima
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Kenyu Iwasaki
- Department of Orthopaedic Surgery, Japan Community Health Care Organization (JCHO) Kyushu Hospital, 1-8-1 Kishinoura Yahata-Nishiku, Kitakyushu City, Fukuoka, 806-8501, Japan
| | - Hideya Kawamura
- Masuda Orthopaedic Hospital, 1-1-1 Korimoto, Kagoshima City, Kagoshima, 890-0065, Japan
| | - Hideki Mizu-Uchi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoshi Hamai
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hidetoshi Tsushima
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shinya Kawahara
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Higuchi T, Koseki H, Yonekura A, Chiba K, Nakazoe Y, Sunagawa S, Noguchi C, Osaki M. Comparison of radiological features of high tibial osteotomy and tibial condylar valgus osteotomy. BMC Musculoskelet Disord 2019; 20:409. [PMID: 31484580 PMCID: PMC6727502 DOI: 10.1186/s12891-019-2764-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 08/14/2019] [Indexed: 11/29/2022] Open
Abstract
Background The purpose of this study was to compare radiological features between high tibial osteotomy (HTO) and tibial condylar valgus osteotomy (TCVO), in order to define the radiological indication criteria for TCVO. Methods Thirty-two cases involving 35 knees that had undergone HTO and the same number that had undergone TCVO for knee osteoarthritis were retrospectively evaluated. Characteristics of both groups did not differ significantly. Lower limb alignment, bone morphology, joint congruity, and joint instability were measured in standing full-length leg and knee radiographs obtained before and after surgery. Results Radiological features in the TCVO group included greater frequencies of advanced knee OA grade, varus lower limb malalignment, depression of the medial tibial plateau, and varus-valgus joint instability compared to the HTO group before surgery. However, tibial morphology, alignment of the lower limb, and joint instability improved to comparable levels after surgery in both groups. Conclusions TCVO appears preferable in cases with advanced knee OA, destroyed or inclined medial tibial plateau, widened and subluxated lateral joint, and high varus-valgus joint instability.
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Affiliation(s)
- Takashi Higuchi
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan
| | - Hironobu Koseki
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan. .,Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
| | - Akihiko Yonekura
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ko Chiba
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yusuke Nakazoe
- Department of Orthopedic Surgery, Wajinkai Hospital, Nagasaki, Japan
| | - Shinya Sunagawa
- Department of Health Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan
| | - Chieko Noguchi
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Makoto Osaki
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Goto N, Okazaki K, Akiyama T, Akasaki Y, Mizu-Uchi H, Hamai S, Nakamura S, Nakashima Y. Alignment factors affecting the medial meniscus extrusion increases the risk of osteoarthritis development. Knee Surg Sports Traumatol Arthrosc 2019; 27:2617-2623. [PMID: 30456569 DOI: 10.1007/s00167-018-5286-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 11/07/2018] [Indexed: 12/23/2022]
Abstract
PURPOSE Varus alignment is known as one of the major causes of medial compartment osteoarthritis (OA). Medial meniscus extrusion also plays a critical role in the in the development of OA. However, studies on the exact relationship between alignment parameters and medial meniscus extrusion are limited. Therefore, this study aimed to investigate this relationship in patients with knee OA. METHODS Based on a retrospective analysis of the outpatient magnetic resonance imaging (MRI) database, 190 knees were identified to be examined using weight-bearing, whole-leg radiographs and MRIs within 3 months from the first consultation. Subsequently, various parameters of lower leg alignment were measured, which affected the knee varus in radiographs. Finally, a statistical analysis was performed to assess the relationships between the OA grade, distance of medial meniscus extrusion (MME), and alignment parameters; hip-knee-ankle angle (HKAA), percentage of mechanical axis (% MA), medial proximal tibial angle (MPTA), and joint line convergence angle (JLCA). The subjects were divided according to the presence or absence of MME (Group A: MME distance below 3 mm, Group B: MME distance 3 mm and above) to assess the differences in each alignment parameter correlated with MME distance between the groups. RESULTS MME distance significantly increased with OA grade progression. HKAA, % MA, MPTA, and JLCA significantly correlated with medial meniscus extrusion distance (r = - 0.21, - 0.23, - 0.16, 0.3, respectively). Multiple regression analysis of each significant alignment combined with age, sex, and body mass index revealed that HKAA, % MA, MPTA, and JLCA were significant independent factors of MME distance (P = 0.008, 0.0026, 0.011, 0.0001, respectively). These significant findings were reinforced in group B. In contrast, the correlation between alignment parameters and medial meniscus extrusion distance was not significant in group A. CONCLUSION Varus alignment factors are related to MME distance especially in extruded meniscus knees, as the OA grade progressed. Therefore, the coexistence of varus alignment and MME can be the risk factors for OA progression. As the low MPTA was an independent alignment factor for generating varus alignment, patients with osteoarthritis of the knee with both, low MPTA and MME could be the appropriate candidates for early intervention by high tibial osteotomy. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Norio Goto
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ken Okazaki
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Takenori Akiyama
- Akiyama clinic, 4-17-1 Midorigahama, Kasuya Gun, Shingu Cho, Fukuoka, 811-0119, Japan
| | - Yukio Akasaki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Hideki Mizu-Uchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoshi Hamai
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shunsuke Nakamura
- Akiyama clinic, 4-17-1 Midorigahama, Kasuya Gun, Shingu Cho, Fukuoka, 811-0119, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Rausch V, Hackl M, Oppermann J, Leschinger T, Scaal M, Müller LP, Wegmann K. Peroneal nerve location at the fibular head: an anatomic study using 3D imaging. Arch Orthop Trauma Surg 2019; 139:921-926. [PMID: 30737594 DOI: 10.1007/s00402-019-03141-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Injuries to the peroneal nerve are a common complication in operative treatment of proximal tibial or fibular fractures. To minimize the risk of iatrogenic injury to the nerve, detailed knowledge of the anatomy of the peroneal nerve is essential. Aim of this study was to present a detailed description of the position and branching of the peroneal nerve based on 3D-images to assist preparation for surgical approaches to the fibular head and the tibial plateau. METHODS The common peroneal nerve, the deep and the superficial peroneal nerve were marked with a radiopaque thread in 18 formalin-embalmed specimens. Three-dimensional X-ray scans were then acquired from the knee and the proximal lower leg in full extension of the knee. In 3D-reconstructions of these scans, distances of the common peroneal nerve and its branches to clearly defined osseous landmarks were measured digitally. Furthermore, the height of the branching of the common peroneal nerve was measured in relation to the landmarks. RESULTS The mean distance of the common peroneal nerve at the level of the tibial plateau to its posterior osseous limitation was 7.92 ± 2.42 mm, and 1.31 ± 2.63 mm to the lateral osseous limitation of the tibia. In a transversal plane, distance of the common peroneal nerve branching was 27.56 ± 3.98 mm relative to the level of the most proximal osseous extension of fibula and 11.77 ± 6.1 mm relative to the proximal extension of the tibial tuberosity. The deep peroneal nerve crossed the midline of the fibular shaft at a distance of 22.14 mm ± 4.35 distally to the most proximal extension of the fibula, the superficial peroneal nerve at a distance of 33.56 mm ± 6.68. CONCLUSION As the course of the peroneal nerve is highly variable in between individuals, surgical dissection for operative treatment of proximal posterolateral tibial or fibular fractures has to be done carefully. We defined an area were the peroneal nerve and its branches are unlikely to be found. However, specific safe zones should not be utilized due to the individual anatomic variation.
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Affiliation(s)
- V Rausch
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany.
| | - M Hackl
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
| | - J Oppermann
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
| | - T Leschinger
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
| | - M Scaal
- Department of Anatomy II, Medical Faculty, University of Cologne, Cologne, Germany
| | - L P Müller
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
| | - K Wegmann
- Center for Orthopedic and Trauma Surgery, University of Cologne, Faculty of Medicine and University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
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A residual intra-articular varus after medial opening wedge high tibial osteotomy (HTO) for varus osteoarthritis of the knee. Arch Orthop Trauma Surg 2019; 139:743-750. [PMID: 30673869 DOI: 10.1007/s00402-018-03104-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Indexed: 02/09/2023]
Abstract
PURPOSE Varus deformity of knee osteoarthritis was formed by both intra-articular and extra-articular pathologies. Such intra-articular deformities could not be fully corrected by a medial open-wedge high tibial osteotomy (HTO), which was performed as an extra-articular procedure. Therefore, the purpose of this study was to investigate whether any residual varus was left inside the joint after HTO in the patients with knee osteoarthritis, and a correlation of the residual varus could be traced. METHODS This study involved 66 patients (66 knees) undergoing HTO for medial knee osteoarthritis. The percentage of mechanical axis (%MA), mechanical femorotibial angle (mFTA), mechanical lateral distal femoral angle (mLDFA), mechanical medial proximal tibial angle (mMPTA) and joint line convergence angle (JLCA) were measured on radiographs of the full-length legs preoperatively and 6 months postoperatively. The relationship between changes in the JLCA and alignment correction was assessed. The postoperative residual JLCA was categorized as the optimal (postoperative JLCA ≤ 2°), the acceptable (2° < postoperative JLCA ≤ 5°), and the unacceptable (postoperative JLCA > 5°) to analyze its correlation with pre- or intra-operative factors. RESULTS Average %MA and mFTA were improved from 5.5 to 60% and from 190.2° to 176.4°, respectively. There was no change in mLDFA, whereas mMPTA changed from 80.3° to 91.8°. JLCA changed from 4.2° to 2.7°. The analyses of multiple linear regression showed that the preoperative JLCA and postoperative changes in mechanical alignment (%MA, mFTA and mMPTA) were two important variables dependently associated with differences in JLCAs postoperatively. However, postoperative JLCAs showed a stronger correlation to preoperative JLCAs than to changes in mechanical alignment postoperatively. A Chi-square analysis showed a significantly higher percentage of patients achieved acceptable postoperative JLCAs in the preoperative JLCA ≤ 6° group (78.8%) compared to the preoperative JLCA > 6° group (6.1%). Therefore, 6° of JLCA was suggested to be a tipping point. CONCLUSIONS The capability of HTO to correct intra-articular varus deformities, which was represented by JLCAs, is limited. Postoperative residual JLCAs were correlated primarily to preoperative JLCA values and total alignment correction, while the former accounted for most. A preoperative JLCA of 6° was suggested to be a tipping point, and a larger value indicated more than 5° residual JLCA after the HTO.
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