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Bouché PA, Corsia S, Auberger G, Descamps J, Anract P, Hamadouche M. Validation of mediCAD® software for fully digital preoperative planning of total hip arthroplasty: a retrospective study. Orthop Traumatol Surg Res 2024; 110:103941. [PMID: 39043497 DOI: 10.1016/j.otsr.2024.103941] [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: 06/17/2023] [Revised: 03/11/2024] [Accepted: 04/09/2024] [Indexed: 07/25/2024]
Abstract
INTRODUCTION The planning step that precedes a total hip arthroplasty (THA) procedure is crucial. Digital planning software programs are being increasingly used, although few studies have reported on the reliability of such tools. Furthermore, no studies have been conducted on the mediCAD® software, despite it being widely used in France. This led us to conduct a retrospective study to: (1) assess the accuracy of this planning software, (2) determine the intra- and inter-rater reliability, (3) determine how obesity affects the accuracy of planning. HYPOTHESIS THA planning is accurate and reliable when using the mediCAD® software. PATIENTS AND METHODS This was a single center, retrospective study. One hundred one consecutive cases performed by a single experienced surgeon were planned retrospectively by two blinded surgeons on two separate occasions. The acetabular cup was cemented in 90 hips (89%), cementless in 11 hips (11%). A dual mobility cup was used in 21 hips (21%). The femoral stem was cemented in 60 hips (59%). The endpoint was the number of exact plans, defined as the same size as the actual implants. An acceptable match was defined as a difference of one size. The match was unacceptable if the planned and implanted size differed by more than 2 for the acetabular cup or by more than 1 size for the femoral stem. The intra-rater and inter-rater reliability were calculated using the intraclass correlation coefficient (ICC) with 95% confidence intervals (CI). RESULTS Exact agreement was found by the first rater for 15 planned acetabular cups (15%) and for 45 planned femoral stems (45%) relative to the implants used. The second rater reached exact agreement for 20 planned acetabular cups (20%) and 50 planned femoral stems (50%). The intra-rater reliability for the acetabular cup was average (ICC = 0.57; 95%CI [0.43-0.69]) and poor (ICC = 0.38 95%CI [0.20-054]) for the 1st and 2nd rater, respectively. The intra-rater reliability for the femoral stem was poor for the 1st rater (ICC = 0.47 95%CI [0.30-0.61]) and the 2nd rater (ICC = 0.45 95%CI [0.29-0.60]). The interobserver reliability was low for the planned acetabular cup (ICC = 0.39 95%CI [0.21-0.54]) and the planned femoral stem (ICC = 0.42 95%CI [0.24-0.57]). Overall, when combining the two raters, exact prediction of the acetabular cup was achieved in 31 hips (19%) in non-obese patients and in 7 hips (21%) in obese patients (p = 0.62). DISCUSSION This study found acceptable reliability of the mediCAD® software. Experience level, radiograph magnification affected the planning outcome in this study, but obesity did not. We currently do not have the ability to incorporate a reliable radiological scale for two-dimensional templating. Some surgeons prefer using a CT scan, but this costs more than conventional radiographs and exposes the patient to more radiation. This study shows that the mediCAD® software can provide satisfactory output for the preoperative planning of THA. LEVEL OF EVIDENCE III; retrospective, diagnostic, comparative study.
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Affiliation(s)
- Pierre-Alban Bouché
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Lariboisière, 2 rue Ambroise Paré 75010 Paris, France.
| | - Simon Corsia
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Cochin, 27 rue du Faubourg Saint-Jacques 75014 Paris, France
| | - Guillaume Auberger
- Service de Chirurgie Orthopédique et Traumatologique, Groupe Hospitalier Diaconesses Croix St-Simon, 125 rue d'Avron, 75020 Paris, France
| | - Jules Descamps
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Lariboisière, 2 rue Ambroise Paré 75010 Paris, France
| | - Philippe Anract
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Cochin, 27 rue du Faubourg Saint-Jacques 75014 Paris, France
| | - Moussa Hamadouche
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Cochin, 27 rue du Faubourg Saint-Jacques 75014 Paris, France
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Kumagai K, Yamada S, Nejima S, Sotozawa M, Inaba Y. Cartilage Degeneration of the Lateral Compartment of the Knee at Second-Look Arthroscopy Is Associated With Deterioration of 10-Year Clinical Outcomes After Opening-Wedge High Tibial Osteotomy. Arthroscopy 2023; 39:2354-2362. [PMID: 37120041 DOI: 10.1016/j.arthro.2023.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/21/2023] [Accepted: 03/31/2023] [Indexed: 05/01/2023]
Abstract
PURPOSE To identify the arthroscopic findings associated with deterioration of 10-year clinical outcomes after opening-wedge high tibial osteotomy (OWHTO) in patients with knee osteoarthritis. METHODS A total of 114 consecutive knees of 91 patients with knee osteoarthritis who underwent OWHTO between 2007 and 2011 were retrospectively reviewed. Of these patients, those who underwent second-look arthroscopy and were followed up for a minimum of 10 years were enrolled. The Knee Society Score (KSS) and hip-knee-ankle angle were assessed. Cartilage status was graded at the time of osteotomy (first look) and plate removal (second look) according to the International Cartilage Repair Society (ICRS) grading system. The KSS knee subscale score and function subscale score were assessed separately, and on the basis of the changes in each of these scores from 1 to 10 years postoperatively and the minimal clinically important difference (MCID), the patients were divided into 2 groups: deteriorated (deterioration of score ≥ MCID) and non-deteriorated (deterioration of score < MCID). RESULTS Sixty-nine knees were included in this study. The mean knee score improved continuously from 48.7 ± 11.3 preoperatively to 86.8 ± 10.3 at 1 year (P < .001), 87.5 ± 9.9 at 5 years (P < .001), and 86.5 ± 10.5 at 10 years (P < .001) postoperatively. The mean function score also improved continuously from 62.5 ± 12.1 preoperatively to 90.7 ± 12.9 at 1 year (P < .001), 91.6 ± 12.1 at 5 years (P < .001), and 88.5 ± 13.1 at 10 years (P < .001) postoperatively. Three knees underwent conversion to total knee arthroplasty within 10 years postoperatively. The deteriorated KSS group showed significantly progressed ICRS grades in the lateral compartment compared with the non-deteriorated KSS group. The ICRS grade in the lateral compartment at second-look arthroscopy was identified as the only significant factor associated with both knee score deterioration (odds ratio, 4.89; P = .03) and function score deterioration (odds ratio, 3.91; P = .03) on multivariable logistic regression analysis. CONCLUSIONS The presence of cartilage degeneration of the lateral compartment of the knee at second-look arthroscopy is associated with deterioration of long-term clinical outcomes after OWHTO. LEVEL OF EVIDENCE Level IV, therapeutic case series.
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Affiliation(s)
- Ken Kumagai
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan.
| | - Shunsuke Yamada
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Shuntaro Nejima
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Masaichi Sotozawa
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University Hospital, Yokohama, Japan
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Undercorrection: the undesired effect of compression on the osteotomy gap of the medial opening wedge high tibial osteotomy and its clinical significance. Arch Orthop Trauma Surg 2022; 142:937-946. [PMID: 33417032 DOI: 10.1007/s00402-020-03717-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 12/06/2020] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Undercorrection is a common problem in opening wedge high tibial osteotomy (OWHTO). We investigated the compression effect of cortex screw on the osteotomy gap and its clinical significance. MATERIALS AND METHODS A standard OWHTO using the TomoFix plate was conducted on 20 bone models in two groups to get a 10-mm medial osteotomy gap. A cortex screw was used temporarily in a neutral (at the center) and an eccentric position (near the inclined plane) of the dynamic hole in group 1 and group 2, respectively. The mean of undercorrection observed in the two groups was compared using an independent t test. Also, the effect of compression on the gap between the plate and medial tibial cortex, and the osteotomy gap was evaluated using a Sine rule. Besides, the mean undercorrection observed was assessed for clinical significance based on the effect on the weight-bearing axis (WBA) using a Cosine Rule. RESULTS The mean undercorrection was 1.3 ± 0.6 mm and 2.6 ± 0.6 mm in group 1 and group 2, respectively. A significantly greater undercorrection was observed in group 2 (p < 0.001). The correction loss in group 2 has resulted from combinations of the sliding effect of the dynamic hole and oblique compression effect over the gap between the plate and medial tibial cortex whereas in group 1 it has only resulted from the oblique compression effect. The observed undercorrection in group 2 has resulted in clinically significant WBA shift (10%) over the width of the tibial plateau. CONCLUSIONS In OWHTO, compression is important for the stability and healing of osteotomy, but it can also cause loss of correction. In patients requiring large correction, the surgeon should control the amount of compression required and consider making extra osteotomy gap to avoid undercorrection. Furthermore, the placement of cortex screws in neutral is essential to lower the risk of undercorrection.
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Bode L, Kühle J, Brenner AS, Freigang V, Eberbach H, Niemeyer P, Südkamp NP, Schmal H, Bode G. Patellofemoral cartilage defects are acceptable in patients undergoing high tibial osteotomy for medial osteoarthritis of the knee. BMC Musculoskelet Disord 2022; 23:489. [PMID: 35610637 PMCID: PMC9128134 DOI: 10.1186/s12891-022-05398-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 05/04/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Patients suffering cartilage defects of the medial compartment with underlying varus deformity do benefit from high tibial osteotomy (HTO) even in the long term. Nonetheless, kinematic and geometric changes especially in the patellofemoral joint have been described. Purpose of the present study was to evaluate the influence of patellofemoral cartilage defects detected during the diagnostic arthroscopy and their influence on HTO's postoperative outcome. METHODS Ninety patients with a mean follow-up of 10.08 ± 2.33 years after surgery were included. Patients were divided into four groups according to their cartilage status in the patellofemoral joint (A = no defects, B = isolated lesions of the patella, C = isolated lesions of the trochlea, D = kissing lesions). Functional outcome was evaluated before surgery and about ten years thereafter by relying on the IKDC, Lysholm, and KOOS scores. Radiological parameters were assessed pre- and six weeks postoperatively. RESULTS In groups A to D, the HTO led to significant patellar distalisation in the sagittal view, with the mean indices remaining at or above the limit to a patella baja. All patients in all groups profited significantly from HTO (higher Lysholm score, lower VAS p < 0.001), patients in group D had the lowest outcome scores. Patella height negatively influenced outcome scores in group C (Blackburne-Peel-Index-VAS p = 0.033) and D (Caton-Deschamps-Index-Tegner p = 0.018), a larger valgus correction was associated with lower outcome scores in group D (Lysholm p = 0.044, KOOSpain 0.028, KOOSQOL p = 0.004). CONCLUSION Long-term results of HTO for varus medial compartment osteoarthritis remain good to excellent even in the presence of patellofemoral defects. Overcorrection should be avoided. Distal biplanar HTO should be considered for patients presenting trochlear or kissing lesions of the patellofemoral joint. TRIAL REGISTRATION DRKS00015733 in the German Registry of Clinical Studies.
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Affiliation(s)
- Lisa Bode
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
| | - Jan Kühle
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Anna-Sophie Brenner
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Viola Freigang
- Department of Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Helge Eberbach
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Philipp Niemeyer
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- OCM Clinic, Munich, Germany
| | - Norbert P Südkamp
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Hagen Schmal
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Department of Orthopedic Surgery, University Hospital Odense, Sdr. Boulevard 29, 5000, Odense C, Denmark
| | - Gerrit Bode
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Praxisklinik 2000, Wirthstr. 11A, Freiburg, Germany
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Bode L, Eberbach H, Brenner AS, Kloos F, Niemeyer P, Schmal H, Suedkamp NP, Bode G. 10-Year Survival Rates After High Tibial Osteotomy Using Angular Stable Internal Plate Fixation: Case Series With Subgroup Analysis of Outcomes After Combined Autologous Chondrocyte Implantation and High Tibial Osteotomy. Orthop J Sports Med 2022; 10:23259671221078003. [PMID: 35224123 PMCID: PMC8873560 DOI: 10.1177/23259671221078003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/08/2021] [Indexed: 12/05/2022] Open
Abstract
Background: Good-to-excellent midterm results after high tibial osteotomy (HTO) to treat
medial compartment cartilage defects or osteoarthritis (OA) have been
published, but little is known about long-term survival rates in terms of
conversion to total knee arthroplasty (TKA) using angular stable internal
plate fixation. Purpose: To determine TKA-free survival rates and functional and radiological outcomes
at 10 years after HTO. A subgroup analysis of patients who underwent
combined HTO and autologous cartilage implantation (ACI) was also
performed. Study Design: Case series; Level of evidence, 4. Methods: Included were 125 patients with a mean follow-up of 9.90 ± 2.25 years; 90
patients underwent HTO for medial OA, and 35 patients underwent ACI and HTO
for medial focal cartilage defects. Functional outcome measures included
visual analog scale (VAS) for pain, Lysholm, International Knee
Documentation Committee (IKDC), and Knee injury and Osteoarthritis Outcome
Score (KOOS) subscales and KOOS4 (average of 4 KOOS subscales:
Pain, Symptoms, Sport, and Quality of Life). Radiological outcomes included
lateral distal femoral angle, medial proximal tibial angle, and joint line
convergence angle. Results: Overall, 16 patients required conversion to TKA at a mean 86.75 ± 25.73
months (10-year survival rate, 87.2%). Only 2 patients in the HTO+ACI
subgroup required a conversion to TKA (10-year survival rate, 94.3%). The
complication rate for all patients was 8.8%. In both the HTO and HTO+ACI
subgroups, VAS pain levels decreased and Lysholm scores increased
significantly from pre- to postoperatively (P < .001). A
higher preoperative Tegner score led to a significantly lower risk for
conversion to TKA (P = .001), and a preoperative body mass
index of ≥35 was associated with a significantly higher risk
(P = .019), as was female sex (P =
.046). Radiological parameters remained within physiological ranges. The
postoperative joint line conversion angle did correlate with postoperative
functional outcome but not with TKA conversion. Conclusion: Long-term results of HTO for medial compartment OA or cartilage defects with
underlying varus deformity were good to excellent. In particular, patients
who underwent HTO+ACI presented excellent long-term survival rates. HTO,
therefore, delays or prevents TKA implantation, especially in young, active
patients with medial compartment damage.
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Affiliation(s)
- Lisa Bode
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Helge Eberbach
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Anna-Sophie Brenner
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Ferdinand Kloos
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Philipp Niemeyer
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- OCM Clinic, Munich, Germany
| | - Hagen Schmal
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Department of Orthopaedic Surgery, University Hospital Odense, Odense, Denmark
| | - Norbert P. Suedkamp
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Gerrit Bode
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Sporthopaedicum, Straubing, Straubing, Germany
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Increased patellar bone tracer uptake in preoperative SPECT/CT before medial opening high tibial osteotomy correlates with inferior clinical outcome. Knee Surg Sports Traumatol Arthrosc 2022; 30:397-406. [PMID: 34482416 PMCID: PMC8866278 DOI: 10.1007/s00167-021-06717-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 08/20/2021] [Indexed: 11/10/2022]
Abstract
PURPOSE The purpose of this study was to investigate whether specific bone tracer uptake (BTU) patterns on preoperative SPECT/CT could predict which patients with varus alignment and medial overload would particularly benefit from medial opening-wedge high tibial osteotomy (MOWHTO). It was the hypothesis that an increased preoperative BTU relative to the reference BTU of the femur on SPECT/CT in the lateral and patellar compartments of the knee are predictive factors for inferior clinical outcome and that the clinical outcome correlates with the extent of alignment correction. METHODS Twenty-three knees from 22 patients who underwent MOWHTO for medial compartment overload were investigated preoperatively using Tc-99m-SPECT/CT. BTU was quantified and localised to specific joint areas according to a previously validated scheme. Pre- and postoperative mechanical alignment was measured. Clinical outcome was assessed at a median of 24 months (range 11-30) after MOWHTO by collecting the WOMAC score. RESULTS Significant correlations between BTU in the patellar area and the total WOMAC score and its subcategories pain and stiffness were found. Thus, BTU in the 1sPat area (superior lateral patellar compartment) correlated with total WOMAC (rho = 0.43, p = 0.04), pain subcategory (rho = 0.43, p = 0.04), and stiffness subcategory (rho = 0.59, p = 0.003). No significant correlations were found between alignment correction, age, gender and WOMAC. CONCLUSION This study highlights the role of preoperative SPECT in modern knee surgery to obtain information about the loading pattern on different compartments of the knee. Despite the limited number of participants, the present study shows that a preoperative SPECT/CT scan can help the treating surgeons to identify patients who may be at risk of inferior clinical outcome if an MOWHTO is considered, as an elevated BTU in the patellar region on preoperative SPECT/CT appears to be a potential risk factor for postoperative pain and stiffness. LEVEL OF EVIDENCE Level III.
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Snow M, Jermain P, Mandalia V, Murray J, Khakha R, McNicholas M, Dawson M. A 2021 consensus statement on osteotomies around the knee by the UK Knee Osteotomy consensus Group (KOG). Knee 2021; 33:73-83. [PMID: 34562741 DOI: 10.1016/j.knee.2021.08.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND There are significant deficiencies in the evidence base of modern-day osteotomy which result in significant variation in practice between surgeons. The purpose of this statement was to develop a consensus statement on the practice of osteotomy so that a more standardized approach to the indications, surgical technique, and postoperative care could be outlined. The article is also intended to educate and inform the practice of individuals who are early in their experience and/or clinical practice. METHOD A group of 29 specialist knee surgeons who regularly perform osteotomy was convened to form the Knee Osteotomy consensus Group (KOG). Consensus was determined utilizing the consensus group technique described by List. A total of 37 questions were asked covering all aspects of clinical practice. RESULTS 20 statements were generated and debated until a criterion level of 70% was met. CONCLUSIONS Consensus was achieved regarding 20 statements concerning Indications for surgery, decision making, surgical planning, technique, post-operative assessment and recovery.
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Affiliation(s)
- Martyn Snow
- The Royal Orthopaedic Hospital, Birmingham, UK; The Robert Jones and Agnes Hunt Hospital, UK; The Robert Jones and Agnes Hunt, Oswestry, UK.
| | | | | | - James Murray
- Avon Orthopaedic Centre, Southmead Hospital, Bristol, UK.
| | | | | | - Matt Dawson
- North Cumbria University Hospital NHS Trust, UK.
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Heinz T, Reppenhagen S, Wagenbrenner M, Horas K, Ohlmeier M, Schäfer T, Rudert M, Barthel T, Weißenberger M. Focal cartilage defects of the lateral compartment do influence the outcome after high tibial valgus osteotomy. SICOT J 2021; 7:44. [PMID: 34431783 PMCID: PMC8386396 DOI: 10.1051/sicotj/2021044] [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: 06/29/2021] [Accepted: 07/27/2021] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION High tibial medial open-wedge valgus osteotomy (HTO) is a well-established procedure for unicompartimental medial osteoarthritis of the young and active patient. However, the influence of cartilage defects of the lateral compartment on the total outcome remains obscure. METHODS From 2005 to 2012, a total of 63 patients underwent HTO for medial osteoarthritis of the knee at a single university orthopaedic center. Baseline data as well as intraoperative findings, including the grade and location of cartilage lesions, were evaluated retrospectively. Two groups were formed regarding the integrity of the lateral tibiofemoral compartment as measured by the Outerbridge score (group A: no lateral cartilage defects, group B: mild to moderate lateral cartilage defects). Functional outcome was assessed using the Knee and Osteoarthritis Outcome Score (KOOS), including its five subscores. RESULTS Comparing pre- and postoperative data, we identified an overall benefit of the HTO procedure as measured by the KOOS. Group A (no lateral cartilage defects) showed an increase in all five KOOS subscores (p = 0.00-0.01), whereas for group B (mild to moderate lateral cartilage defects), only two KOOS subscores revealed a significant increase (p = 0.03-0.04). There was also a statistically significant difference in the total KOOS score with higher values for group A at the postoperative visit. Cartilage defects with a higher Outerbridge score were associated with lower postoperative KOOS subscores. DISCUSSION Mild to moderate cartilage defects of the lateral compartment humble the total outcome after HTO procedure. Thus, indication for HTO should be made very carefully if any degree of lateral cartilage degeneration is present.
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Affiliation(s)
- Tizian Heinz
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Stephan Reppenhagen
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Mike Wagenbrenner
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Konstantin Horas
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Malte Ohlmeier
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg 22767 Hamburg Germany
| | - Thomas Schäfer
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Maximilian Rudert
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Thomas Barthel
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
| | - Manuel Weißenberger
- Department of Orthopaedic Surgery, University of Wuerzburg Koenig-Ludwig-Haus, Brettreichstr. 11 97074 Wuerzburg Germany
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Petersen W, Bierke S, Häner M. Kniegelenknahe Osteotomie bei unikompartimenteller Gonarthrose. ARTHROSKOPIE 2020. [DOI: 10.1007/s00142-020-00378-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Floyd E, Cohn P, Ferguson J, Kalantar SB. A review of preoperative planning technologies for spinal deformity correction. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.semss.2020.100787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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