ArticleJournal of experimental orthopaedics2026
Preoperative knee cartilage degeneration in the patellofemoral joint results in worse clinical outcome scores 2 years after inverted V-shaped high tibial osteotomy.
Article in Journal of experimental orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: To determine whether preoperative whole-organ knee magnetic resonance imaging findings are associated with 2-year patient-reported outcomes after inverted V-shaped high tibial osteotomy (iV-HTO). The hypothesis of this study was that preoperative tibiofemoral cartilage wear or meniscal lesion predicts worse outcomes 2 years after iV-HTO, while patellofemoral joint degeneration does not have a significant impact. Methods: A retrospective review was conducted of iV-HTO cases (2015-2022) with preoperative magnetic resonance imaging and 2-year follow-up data. Whole-Organ Magnetic Resonance Imaging Score (WORMS) sub-scores for cartilage, meniscus, bone marrow lesions, cysts and effusion were recorded for each compartment. Paired Results: Forty-six knees (39 patients; age, 55.5 ± 8.3 years; BMI, 27.9 ± 4.0 kg/m Conclusions: iV-HTO yields significant 2-year clinical and radiographic improvements. However, advanced preoperative patellar cartilage degeneration independently predicted worse KOOS Symptoms despite coronal realignment and enhanced patellofemoral congruity. Preoperative patellofemoral cartilage grading should guide indications, counselling and preoperative planning. Level of Evidence: Level IV, retrospective cohort study.
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