Complex Knee Injuries

This information is useful for children, adults, and older adults
knee injury

A man with a complex knee injury grabs his knee.


Your knee is a freely moving hinge joint that allows you to bend and flex your leg as you walk, run and climb stairs, or twist, turn and pivot quickly. It takes a network of hardworking, interdependent ligaments to make those movements possible. If you fall or injure two or more of them at once, the treatment can be complicated. 

This type of injury is called a complex knee ligament condition, and it’s an important area of specialization for Yale Medicine Orthopedics & Rehabilitation, says Michael Medvecky, MD, chief of Yale Medicine Sports Medicine