Reconstruction of the Medial Patellofemoral Ligament for Recurrent Patellar Dislocation by the Semitendinosus Tendon

Abstract：Objective To summarize clinical application result of reconstruction of the medial patellofemoral ligament for recurrent patellar dislocation by the semitendinosus tendon. Methods From September 2006 to May 2013,12 patients(8 men,4 women)with recurrent patellar dislocation were treated by reconstruction of the medial patellofemoral ligament with the semitendinosus tendon and combination lateral release and the medial placation of the joint capsular. They ranged in age from 17 to 36 years(mean,22. 6 years). The dislocation of the patellar were located at left knee in eight patient,right in six. Ten patients were unilateral knee and two bilateral. Results Follow-up period ranged from 13 months to 5 years postoperatively (mean,2. 5 years). The recovery results was calculated with Baily scores of the knee joint function recovery. Good and fair re-sults were achieved in 9 and 3 patients,respectively,No apparent complications related to the technique. Satisfactory clinical results were obtained in this series. Conclusion The reconstruction of the medial patellofemoral ligament with the semitendi-nosus tendon and combination lateral release and the medial placation of the joint capsular may be particularly useful in the treatment of recurrent patellar dislocation. This is a simple and safe surgical technique.