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Digital radiographs of knee OA patients. Here is the comparison of the main surgical methods for the treatment of knee osteoarthritis before and after different surgeries (left: before surgery; right: after surgery) operation, each picture shows the digital radiography before and after the operation: (A) proximal fibula osteotomy; (B) high tibial osteotomy; (C) unicompartmental knee arthroplasty; (D) total knee arthroplasty.
