A 16-year-old boy arrives at the emergency department with right knee discomfort following a tumble. His symptoms began following a skiing mishap in which he wrenched his right lower leg outward relative to the thigh. He has no medical issues and is not currently on any drugs. There is edema and pain on the medial area of the right knee on examination. When a mild force is given to the lateral knee while the lower leg remains motionless, the medial joint line widens. Which of the following indicated structures in this patient is most likely injured?

Question

Quizplus · Accepted Answer

Eductional Objective: The medial collateral ligament provides resistance to forces that drive the knee medially. Increased knee laxity with the valgus stress test implies medial collateral ligament damage.

A 16-Year-Old Boy Arrives at the Emergency Department with Right