M94.2: Chondromalacia

Chondromalacia, also known as "runner's knee," is a degenerative condition in which the cartilage underneath the kneecap softens and deteriorates. This cartilage helps your kneecap to glide smoothly over your knee joint when you bend or straighten your leg. Without it, the movement of the kneecap can become rough and abrasive, causing pain and inflammation. Common symptoms include a dull, aching pain in the front of your knee, especially when climbing stairs, kneeling, or sitting with your knee bent for a long time. The condition can develop due to a single traumatic injury to the knee, repeated overuse of the knee, or through the aging process where natural wear and tear occur. It commonly affects young athletes, but it can happen to anyone at any age. Misalignment of the kneecap is also considered a major contributing factor to chondromalacia. It is often gradual in onset and can worsen over time if not managed properly.

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