ArticleArchives of orthopaedic and trauma surgery2024
An increased medial proximal tibial angle of greater than 95 degrees after opening wedge high tibial osteotomy is not associated with deterioration of minimum 10-year clinical outcomes.
Article in Archives of orthopaedic and trauma surgery, 2024. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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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
- Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to assess whether an excessively increased medial proximal tibial angle (MPTA) resulted in the deterioration of long-term clinical outcomes after opening wedge high tibial osteotomy (OWHTO) for patients with knee osteoarthritis (OA).
methodsA total of 69 OA knees that underwent OWHTO, with follow-up for a minimum of 10 years, were retrospectively reviewed. The knee and function scores of the Knee Society Score were assessed separately, and cases with a score decline greater than or equal to the minimal clinically important difference from postoperative 1 to 10 years were defined as showing clinical deterioration. Cartilage status was assessed with arthroscopy at the time of osteotomy (first-look) and plate removal (second-look) according to the International Cartilage Repair Society grading system. The outcomes were compared between knees with MPTA ≤ 95° (n = 27) and MPTA > 95° (n = 42).
resultsThe mean knee and function scores at postoperative 10 years in MPTA ≤ 95° knees (86.8 ± 9.6 and 90.4 ± 13.1) were not significantly different from those in MPTA > 95° knees (85.8 ± 11.5 and 86.9 ± 14.2). The rate of clinical deterioration in knee and function scores was not significantly different between MPTA ≤ 95° knees (26% and 26%) and MPTA > 95° knees (21% and 36%). No significant differences were found between the MPTA ≤ 95° and MPTA > 95° groups in the cartilage status of all compartments at both first-look and second-look (postoperative 21 months) arthroscopies.
conclusionsIncreased MPTA > 95° after OWHTO is not associated with deterioration of minimum 10-year clinical outcomes.
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