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Preoperative flexion contracture is a predisposing factor for cartilage degeneration at the patellofemoral joint after open wedge high tibial osteotomy

Knee Surgery & Related Research 2020년 32권 1호 p.55 ~ 55
Otsuki Shuhei, Ikeda Kuniaki, Wakama Hitoshi, Okuno Nobuhiro, Okamoto Yoshinori, Okayoshi Tomohiro, Miyamoto Yuki, Neo Masashi,
소속 상세정보
 ( Otsuki Shuhei ) - Osaka Medical College Department of Orthopedic Surgery
 ( Ikeda Kuniaki ) - Osaka Medical College Department of Orthopedic Surgery
 ( Wakama Hitoshi ) - Osaka Medical College Department of Orthopedic Surgery
 ( Okuno Nobuhiro ) - Osaka Medical College Department of Orthopedic Surgery
 ( Okamoto Yoshinori ) - Osaka Medical College Department of Orthopedic Surgery
 ( Okayoshi Tomohiro ) - Osaka Medical College Department of Orthopedic Surgery
 ( Miyamoto Yuki ) - Osaka Medical College Department of Orthopedic Surgery
 ( Neo Masashi ) - Osaka Medical College Department of Orthopedic Surgery

Abstract


Purpose: The purpose of the study was to determine the effect of cartilage degeneration at the patellofemoral joint on clinical outcomes after open wedge high tibial osteotomy and to investigate the predisposing factors for progressive patellofemoral cartilage degeneration.

Methods: Seventy-two knees were evaluated on second-look arthroscopy in patients who opted for plate and screw removal at an average of 20.1?months after osteotomy. Cartilage degeneration at the patellofemoral joint was evaluated using the International Cartilage Repair Society grading system, with cases divided into progression and nonprogression groups. Radiographic parameters of the patellofemoral anatomy, knee range of motion, and clinical outcomes were evaluated from the preoperative baseline to the final follow up, on average 50?months after osteotomy. A contracture >?5° was considered a flexion contracture.

Results: Cartilage degeneration progressed in 31 knees, and preoperative knee flexion contracture was significantly associated with progressive degeneration (P?
Conclusions: Flexion contracture may be associated with progression of cartilage degeneration at the patellofemoral joint and may negatively affect the clinical outcomes after open wedge, high tibial osteotomy.

키워드

Knee; Open wedge high tibial osteotomy; Range of motion; Cartilage degeneration; Patellofemoral joint; Clinical outcome

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