Patellar Stress Fracture After Transosseous Extensor Mechanism Repair: Report of 3 Cases

Stress fractures of the patella are reportedly rare. They can be seen in association with knee arthroplasty, anterior cruciate ligament (ACL) surgery, and rarely after impact sports. The fracture pattern is usually transverse. Longitudinal stress fractures do not typically disrupt the extensor mechanism and have not, to our knowledge, ever been identified as a postoperative complication of extensor mechanism repair. James M. Gregory, Seth L. Sherman, Richard Mather, Bernard R. Bach Jr. AJSM PreView, published on April 16, 2012 PDF