Fig. 2. (A, B) Preoperative radiographs of a 56-year-old man showing lateral osteoarthritis of the left knee with tibia vara deformity of both knees. (C) Follow-up radiograph taken 6 months after Zimmer unicompartmental high-flex knee arthroplasty. (D) Follow-up radiograph taken 4 months after additional high tibial osteotomy. (E) Radiograph of the left knee after conversion total knee arthroplasty. Fig. 2. (A, B) Preoperative radiographs of a 56-year-old man showing lateral osteoarthritis of the left knee with tibia vara deformity of both knees. (C) Follow-up radiograph taken 6 months after Zimmer unicompartmental high-flex knee arthroplasty. (D) Follow-up radiograph taken 4 months after additional high tibial osteotomy. (E) Radiograph of the left knee after conversion total knee . . . Clin Orthop Surg. 2016 Dec;8(4):386-392. https://doi.org/10.4055/cios.2016.8.4.386