Clinical-instrumental Evaluation and Assessment of Return to Sports Activity in Patients Surgically Treated for Isolated "Stener-like" Lesions of the Medial Collateral Ligament (MCL) or in the Context of Multiligament Injuries and Articular Fractures

Inclusion Criteria: * Patients of both male and female sex. * Patients who underwent surgical re-insertion of the distal insertion of the medial collateral ligament starting from 01/01/2020 and all patients scheduled for this type of surgical intervention until 12/31/2027; * Patients aged between 12 and 65 years at the time of surgery; * Patients who underwent isolated distal medial collateral ligament re-insertion surgery, as well as those who underwent the same procedure combined with other interventions on the same knee (e.g., multiligament injuries, reduction and osteosynthesis of bone fractures); * Patients who have given consent to participate in the study; * Patients who have undergone preoperative radiological investigations of the affected knee confirming the diagnosis of distal medial collateral ligament injury (MRI in the case of ligament injuries; X-ray and/or CT scan in the case of articular fractures). Exclusion Criteria: * Previous fractures of the same limb treated surgically. * Patient age under 12 years at the time of surgery or patients over 65 years of age. * Patients who have not provided informed consent. * Patients who are no longer contactable. * Patients who have not engaged in sports activity in the 2 years prior to the surgical intervention.