The Elmslie-Trillat Procedure for Recurrent Patellar Subluxation After Total Knee Arthroplasty

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• 作者：Arata Nakajima ; Hitoshi Watanabe ; Tomoyuki Rokkaku ; Masao Koda ; Toshiyuki Yamada ; Masazumi Murakami
• 关键词：Elmslie-Trillat procedure ; patellar subluxation ; TKA ; lateral release ; valgus knee ; valgus ; angle of the femoral trochlear groove
• 刊名：The Journal of Arthroplasty
• 出版年：2010
• 出版时间：October 2010
• 年：2010
• 卷：25
• 期：7
• 页码：1170.e1-1170.e5
• 全文大小：427 K

文摘

Patellofemoral problems are the most common complications after total knee arthroplasty (TKA). We report a patient who had patellar subluxation twice within 7 months after primary TKA. Postoperative radiographs and computed tomography scans revealed a valgus knee with no evidence of malposition of the prostheses. To eliminate the recurrent patellar subluxation, we finally performed an Elmslie-Trillat procedure in combination with extensive lateral release and succeeded in achieving normal patellar tracking. At 1-year postoperative follow-up, the patient was satisfied with the results. The patella tracked well in the femoral trochlear groove during knee flexion after the revision surgery. This procedure, in combination with lateral release, should be considered as a useful surgical treatment that can eliminate patellar subluxation after TKA in cases without component malposition.