Clinical and Instrumental Assessment and Evaluation of Return to Sport in Patients Who Underwent Surgical Treatment for Posterolateral Corner (PLC) Injuries Associated With Anterior Cruciate Ligament (ACL) Injuries.

This is a single-centre, observational retrospective and prospective study aimed at evaluating the clinical and functional outcomes of patients who underwent combined anterior cruciate ligament (ACL) and posterolateral corner (PLC) reconstruction using the Over-The-Top (OTT) technique. The primary outcome is the improvement in knee function, assessed using the Lysholm Knee Score by comparing pre-injury/preoperative status with postoperative follow-up. Secondary outcomes include knee stability, assessed through clinical examinations and instrumental measurements (KT-1000, KiRA, PIVOT App and Telos stress radiographs), return to sport, pain, MRI findings and postoperative complications. Patients aged 18-65 years with a minimum follow-up of 24 months will be included. The study aims to provide evidence on the effectiveness of the combined ACL and PLC reconstruction using the OTT technique.

Inclusion Criteria * Male and female patients; * Patients aged between 18 and 65 years at the time of surgery; * Patients who underwent anterior cruciate ligament (ACL) reconstruction using the Over-The-Top (OTT) technique combined with posterolateral corner (PLC) reconstruction; * Patients who underwent surgery between January 1, 2017, and December 31, 2025; * Patients who underwent preoperative imaging examinations (MRI and, if applicable, X-rays) of the affected knee confirming the diagnosis of ACL and posterolateral corner injuries; * Patients who underwent isolated ACL + PLC reconstruction or ACL + PLC reconstruction combined with additional procedures on the same knee (e.g., meniscal treatment or concomitant ligament injuries); * Patients who provided written informed consent to participate in the study. Exclusion Criteria * History of fractures of the same limb requiring surgical treatment; * History of posterolateral corner (PLC) injuries of the knee requiring surgical treatment; * Patients younger than 18 years or older than 65 years at the time of surgery; * Patients who did not provide informed consent; * Patients who are no longer contactable.