ArticleFrontiers in surgery2026
Excessive tibial valgus was not associated with worse 5-year clinical outcomes after medial opening-wedge high tibial osteotomy for advanced knee osteoarthritis: a retrospective cohort study.
Article in Frontiers in surgery, 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 evaluate whether excessive tibial valgus, defined as a medial proximal tibial angle (MPTA) > 95° at the final follow-up, was associated with worse 5-year clinical outcomes after medial opening-wedge high tibial osteotomy (MOWHTO) in patients with Kellgren-Lawrence (K-L) grade IV medial compartment knee osteoarthritis. Methods: This retrospective cohort study included 165 knees with K-L grade IV medial compartment knee osteoarthritis that underwent MOWHTO. Knees were classified according to the MPTA measured on weight-bearing full-length radiographs at the final follow-up as MPTA >95° ( Results: The mean follow-up duration was 64.49 ± 3.60 months. WOMAC, Lysholm, VAS, and ROM improved significantly from baseline to the final follow-up in the overall cohort (all Conclusion: In patients with K-L grade IV medial compartment knee osteoarthritis treated with MOWHTO, an MPTA >95° at the final follow-up was not significantly associated with worse 5-year clinical outcomes. These findings suggest that the 95° MPTA threshold should not be interpreted in isolation as a determinant of clinical outcome; however, they do not define an optimal correction target or support deliberate overcorrection beyond 95°.
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