지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 9 - 9 (1page)
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Patellar maltracking after total knee arthroplasty (TKA) can lead to significant patellofemoral complications such as anterior knee pain, increased component wear, and a higher risk of component loosening, patellar fracture, and instability. This study was to investigate the preoperative and operative variables that significantly affect patellar tracking after cruciate-retaining TKA.We studied 142 knee joints in patients who had undergone TKA: the knees were dichotomized based on postoperative patellar tracking, which was evaluated on patellar skyline, axial-projection radiographs: group 1, normal patellar tracking (lateral tilt ≤?10° and displacement ≤?3?mm) and group 2, patellar maltracking (lateral tilt >?10° or displacement >?3?mm). The patients’ demographic data and clinical and radiographic measurements obtained before and after surgery were compared between the two groups. Preoperative lateral patellar displacement was greater (4.1?±?2.6?mm vs. 6.0?±?3.5?mm), as was the frequency of medial collateral ligament (MCL) release (3/67 vs. 24/75) in group 2 than in group 1 ( p <?0.001 and p <?0.001, respectively). The distal femur was cut in a greater degree of valgus in group 1 than in group 2. (6.3?±?0.8° vs. 6.0?±?0.8°) ( p =?0.034). Complete release of the MCL during surgery was associated with patellar maltracking (logistic regression: p =?0.005, odds ratio?=?20.592). Surgeons should attend to patellar tracking during surgery in medially tight knees. Retrospective comparative study, level III.
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