Changes in patellar alignment after total knee arthroplasty
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Shingo Fukagawa • Shuichi Matsuda • Hideki Mizu-uchi • Hiromasa Miura • Ken Okazaki • Yukihide Iwamoto
- چاپ و سال / کشور: 2010
Description
Although the results of total knee arthroplasty continue to improve, problems related to the patellofemoral joint remain significant. This study examined the factors affecting patellar alignment after total knee arthroplasty and subsequent changes in 56 knees during a postoperative period of 5.3 years. None of the knees examined displayed any clinical complications of the patellofemoral joint; no revision surgeries were necessary, with acceptable patellar alignment on average. The patellar resection angle had a strong influence on patellar alignment. Thinning of the patellar remnant on the medial side can increase postoperative lateral tilt, which leads to a need for lateral retinacular release. Although the changes in patellar alignment were minimal, the tendency that postoperative varus alignment resulted in patellar lateral tilt was observed. As postoperative femorotibial misalignment can lead to patellofemoral problems after total knee arthroplasty, surgeons need to pay scrupulous attention to femorotibial alignment and proper patellar preparation to decrease patellofemoral complications
Knee Surg Sports Traumatol Arthrosc (2011) 19:99–104 DOI 10.1007/s00167-010-1164-7 Received: 17 March 2009 / Accepted: 3 May 2010 / Published online: 5 June 2010
