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        Short-Term Results of Hybrid Closed-Wedge High Tibial Osteotomy: A Case Series with a Minimum 3-Year Follow-up

        Hidetomo Saito,Kimio Saito,Yoichi Shimada,Toshiaki Yamamura,Shin Yamada,Takahiro Sato,Koji Nozaka,Hiroaki Kijima,Naohisa Miyakoshi 대한슬관절학회 2018 대한슬관절학회지 Vol.30 No.4

        Purpose: High tibial valgus osteotomy (HTO) is a well­established surgical procedure for patients with medial compartment osteoarthritis (OA) of the knee. The hybrid closed­wedge HTO (CWHTO) procedure permits extensive correction in patients with severe deformities or patellofemoral joint OA. The aim of this study was to report the short­term results in a consecutive series of patients treated with hybrid CWHTO.Materials and Methods: We retrospectively evaluated the clinical outcomes and radiographic parameters in 29 consecutive knees that underwent hybrid CWTHO to correct medial compartment OA at an average follow­up of 52.6 months. Clinical outcomes were assessed using the Lysholm score and knee scoring system of the Japanese Orthopedic Association (JOA). The Kellgren­Lawrence grading system and pre­ and postoperative mechanical axis (MA), femorotibial angle (FTA), posterior tibial slope, and patella height were assessed.Results: The FTA and MA significantly changed from 180.7° to 170.4° and from 22.0° to 60.2°, respectively. No significant differences were observed between the mean pre­ and postoperative posterior tibial slope, Insall­Salvati ratio, or Caton­Deschamps index. The postoperative JOA and Lysholm scores significantly improved from 76.7 to 95.8 and from 58.8 to 90.2, respectively. Conclusions: Satisfactory outcomes can be achieved with hybrid CWHTO in patients with medial OA.

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