This analysis compares osteotomy angles impacting pressure distribution in metacarpal surgery, suggesting a 30° shift may enhance joint function.
This study examines the impact of metacarpal osteotomy at varying directions and angles. Using hand CT-DICOM data from fresh frozen cadavers, 3D models were created and analyzed with finite element analysis. Stress changes across various osteotomy directions and angles were compared. The findings indicate that a 30° extension and 30° abduction-opposition osteotomy significantly shift pressure distribution toward the volar side, which may reduce stress and enhance joint congruity.
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Sakuma et al. (2025) studied this question.
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