: The aim of this study is to describe the results of a consecutive set of patients treated in acute for the surgical repair of medial collateral ligament (MCL) tears with a mean follow up of 63.78±43.25 months (4- 136). This is a retrospective observational study. From January 2011 to December 2016, 56 patients within the average of 31.75±13.27 (13-55) years old at the time of injury underwent medial compartment repair in an acute setting. The sample size of our study is therefore made up of 26 patients. Patients have been evaluated with functional scores: IKDC (international knee documentation committee evaluation form), the KOOS (Knee injury and osteoarthritis outcome score) and clinical assessment. The Tegner Activity Score was evaluated retrospectively at the 12 months follow-up. The mean KOOS value at the final follow-up were 91.25±9.65 (72-100) for pain, 85.68 ± 12.34 (57-100) for the symptoms category, 94.5±8,07 (75-100) for the activity of daily life, 71.87±22.86 (35-100) for the sport category and 76.37±18.55 (38-100) for the quality of life. At the last follow up the mean IKCD value was 77.68±15.95 (55-98). The mean difference in the Tegner Activity Score between the preoperative time and the postoperative time was 1.06±1.12 with a 95% Confidence Interval 0.46-1.66. The functional outcomes underline how the surgical approach to the medial capsule-ligament compartment of the knee is a reliable treatment to restore excellent joint function. Level of evidence III retrospective observational study.
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