ArticleJournal of experimental orthopaedics2025
Isolated tibial deformity is the most prevalent varus pattern in North American patients undergoing medial opening wedge high tibial osteotomy.
Article in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Increased joint line obliquity is associated with lateral cartilage degeneration after medial opening wedge high tibial osteotomy: a quantitative MRI analysis.Knee surgery & related research · 2026Article
- Isolated tibial deformity is the most prevalent varus pattern in North American patients undergoing medial opening wedge high tibial osteotomy.Journal of experimental orthopaedics · 2025Article
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7 authors.
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Abstract
Purpose: To evaluate the location of deformity in varus alignment in a North American population and assess early total knee arthroplasty (TKA) conversion rates and TKA-free survival following medial opening wedge high tibial osteotomy (MOWHTO) based on the bony deformity location. Methods: A retrospective analysis was performed on patients with varus alignment who underwent MOWHTO. Deformity analysis measured the hip-knee-ankle (HKA) angle, mechanical medial proximal tibial angle (mMPTA) and mechanical lateral distal femoral angle (mLDFA) using automated software. An abnormal mMPTA was defined as <85° and an abnormal mLDFA was defined as >90°. Cases were classified into four groups based on deformity location: tibial, femoral, combined or no bony deformity. The differences in TKA conversion rates among groups were analysed using the chi-square test, while TKA-free survival was determined using Kaplan-Meier survival analysis, with between-group differences assessed using the log-rank test. Results: A total of 271 patients were included (mean age: 51.6 years; mean follow-up: 3.6 years). The mean HKA angle was 173.0° ± 3.1°. Among the 271 patients, 38% ( Conclusion: In this North American cohort, various varus deformity locations were analysed, with isolated tibial deformity being the most prevalent. Regardless of deformity location, TKA conversion rates remained low, suggesting that MOWHTO may be beneficial even in patients without isolated tibial deformity. Level of Evidence: Level III.
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