Case report demonstrates staged intervention improves outcomes in knee osteoarthritis after hip arthrodesis, suggesting a novel approach for young patients.
Case: A 45-year-old woman presented with right knee pain and low back pain 23 years after hip arthrodesis. Conversion total hip arthroplasty (THA) relieved her low back pain and improved limb alignment, but medial knee pain persisted. A closed-wedge high tibial osteotomy (HTO) was performed. Varus deformity was corrected, and bone union was achieved. Her hip and knee function improved, and pain was reduced. Conclusions: Staged treatment comprising THA followed by HTO is a novel joint-preserving strategy for young, active patients with ipsilateral knee osteoarthritis after hip arthrodesis that may result in favorable clinical and radiographic outcomes.
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Nakajyo et al. (2026) studied this question.
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