What is chondromalacia patellae?

Chondromalacia patellae, also known as “runner’s knee,” is a condition where the cartilage on the undersurface of the patella (kneecap) deteriorates and softens. This condition is common among young, athletic individuals, but may also occur in older adults who have arthritis of the knee.

Chondromalacia is often seen as an overuse injury in sports, and sometimes taking a few days off from training can produce good results. In other cases, improper knee alignment is the cause and simply resting doesn’t provide relief. The symptoms of runner’s knee are knee pain and grinding sensations, but many people who have it never seek medical treatment.