Knee Ligament Injuries
A 24-year-old football player presents after sustaining a direct blow to the lateral aspect of his right knee during a tackle. He felt immediate pain on the medial side of his knee. Examination reveals tenderness over the medial joint line and proximal tibial insertion of the MCL. Valgus stress testing at 30 degrees of flexion shows 8mm of medial joint opening compared to the contralateral side, with a firm endpoint. Regarding MCL anatomy and clinical assessment:
Mark each as TRUE or FALSE
The MCL consists of superficial (sMCL) and deep (dMCL) components; the superficial MCL originates fr...
The deep MCL (meniscotibial and meniscofemoral ligaments) attaches to the medial meniscus and provid...
Valgus stress testing should only be performed at 0 degrees of extension to isolate the MCL; testing...
Grade I MCL injury involves microscopic fiber disruption with less than 5mm laxity and a firm endpoi...
Valgus laxity at 0 degrees of extension indicates combined injury to the MCL and posteromedial corne...
Answer the questions to see explanations
Click T (True) or F (False) for each option