[Prevalence of injury of the medial collateral ligament of the knee assessed by magnetic resonance].

Introduction: The medial collateral ligament (MCL) is one of the main stabilizers of the knee, but its injury occurs in conjunction with other ligaments.

Objective: To determine the prevalence of MCL lesions by magnetic resonance imaging, their degrees and associated lesions in our institution.

Material And Methods: Retrospective study from January to April 2018 where KNEE MRIs were evaluated where the MCL lesion was presented to evaluate the degree and type of associated injuries.

Results: We included 368 studies, prevalence of isolated MCL lesion of 3.07%, grade I and grade II, prevalence of concomitant MCL lesions was 17.66% grade I (75%), grade II (15%) and grade III (3%). Associated injuries were medial meniscus injury (46.15%), anterior cruciate ligament injury (30.7%), isolated bone contusion (18.46%), chodral injuries (37.58%), medial vastus injury (14.51%), patellar medial retinacular injury (14.51%), vastus lateral injury (9.23%), posterior cruciate ligament injury (6.15%), lateral meniscus injury (4.61%), iliotibial band tenosynovitis (4.61%), medial facet avulsion fracture (3.07%), Pes Anserine tenosynovitis (3.07%).

Conclusion: Prevalence of 17.66% of the MCL injuries in our hospital by magnetic resonance, the first 2 degrees predominate, with a wide spectrum of associated knee injuries.