What is lateral patellofemoral joint chondral loss?

Lateral patellofemoral joint chondral loss refers to the degeneration and damage to the cartilage layer that covers the backside of the kneecap (patella) and the groove in the thigh bone (femur) where the kneecap moves during knee flexion and extension.

The articular cartilage provides a smooth, gliding surface and acts as a cushion to reduce friction as the knee joint moves. When this cartilage becomes damaged or worn down, it can lead to pain, joint stiffness, and a decreased range of motion, causing various conditions such as chondromalacia patellae and osteoarthritis. Lateral patellofemoral joint chondral loss commonly occurs along the outer (lateral) aspect of the patellofemoral joint, where increased pressure and mechanical stress is naturally concentrated during certain movements, like climbing stairs or walking up an incline.