A 30-year-old woman is on her first ski trip. While skiing, she fell and twisted her left leg. She cannot stand on her left leg because of pain. On examination, the left knee is swollen and tender. With the patient sitting on the stretcher with her knee flexed. Doctor on duty performed the following test which came out to be positive. What is the most likely injured structure from the following T1w coronal MRI knee?
Correct Answer: PA B
Description: 1st image shows the anterior drawer test being performed. A- PCL tear B- ACL tear C- Lateral meniscal tear D- Medial meniscal tear This 25-year-old woman was involved in a ski injury, a common setting for ACL injury. The twisting force to the lower limb when a ski becomes lodged in snow and the body continues to rotate can produce significant trauma to the knee. The ACL passes from the posterior aspect of the distal femur to the intercondylar region of the anterior aspect of the proximal tibia ACL limits anterior movement of the tibia in relation to the femur. Thus, on examination, this patient exhibits the "anterior drawer sign," or excessive anterior mobility of the tibia with the knee flexed. This injury will usually require surgical repair.
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