Neglected Patellar Tendon Rupture Reconstruction With Peroneus Longus Tendon Autograft and Modified Quadriceps Lengthening: A Case Report

Neglected patellar tendon reconstruction poses several challenges, including considerations for graft options, quadriceps lengthening, and postoperative extensor strength. There is no universal consensus on the optimal technique for neglected patellar tendon reconstruction. In this study, we report the patient with a neglected patellar tendon resulting from trauma occurring 1 year earlier. This patient has ambulatory disturbance, a high-riding patella, and notable limitations in knee range of motion. Our reconstruction procedure involves the use of the peroneus longus autograft, in conjunction with prolene mesh and modified quadriceps tendon lengthening. The results demonstrate an adequately restored patellar position, as evidenced by an Insall-Salvati ratio of 1.3. The patient exhibits a good functional outcome.