NFL players face a variety of injuries that can impact their season. Common issues include Achilles tendon tears, ACL and ...

Other possible causes of outer knee pain include arthritis in the lateral compartment of the knee, lateral meniscus tears, or injuries to the lateral collateral ligament (LCL) that supports the outer ...

Injuries to the MCL (medial collateral ligament) can cause knee pain and instability. Learn about MCL sprains and tears, surgical and nonsurgical treatments.