Rupture of the Patellar Tendon After Platelet-Rich Plasma Treatment A Case ReportRedler, Andrea, MD; Proietti, Lorenzo, MD; Mazza, Daniele, MD; Koverech, Guido, MD; Vadala, Antonio, MD; De Carli, Angelo, MD; Ferretti, Andrea, MDClinical Journal of Sport Medicine: December 03, 2018 - Volume Publish Ahead of Print - Issue - p doi: 10.1097/JSM.0000000000000703 Case Report: PDF Only Buy PAP Abstract Author InformationAuthors Article MetricsMetrics Introduction: Rupture of the patellar tendon is becoming more and more frequent, even in sports activities overloading the extensor mechanism of the knee. Platelet-rich plasma (PRP) treatment has been recently introduced in treatment for several knee- and sport-related injuries including muscle strain cartilage defect and tendinopathies. The aim of this case report is to present a case of rupture of the patellar tendon occurred after injections of PRP. Case Report: A case of a 40-year-old male soccer player sustaining a patellar tendon rupture after a series of 4 PRP injections. At surgery, a complete rupture in the middle of the patellar tendon was found, with severe degenerative changes of the tendon tissue. This case questions the actual efficacy and safety of PRP in severe degenerative tendinopathies. Sant'Andrea Hospital, Traumatology Sports Center “Kilk Kilgour,” “La Sapienza” University, Rome, Italy. Corresponding Author: Lorenzo Proietti, MD, “La Sapienza” University, Sant'Andrea Hospital, Traumatology Sports Center “Kilk Kilgour,” Via Di Grottarossa 1035-1039, Rome, Italy (email@example.com). The authors report no conflicts of interest regarding the publication of this article. Received March 20, 2018 Accepted September 18, 2018 Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.