What is patellofemoral pain syndrome?

Patellofemoral pain syndrome is specifically characterized by pain around the kneecap, which can occur due to various factors, including overuse, alignment issues, or muscular imbalances. This pain is often felt in the front of the knee and can be aggravated by activities such as running, jumping, or climbing stairs. The kneecap, or patella, interacts with the femur (thigh bone) during movement, and any irregularities in this interaction can lead to discomfort and pain.

Understanding that this syndrome is related to the positioning and movement of the patella over the femur helps clarify why it is distinct from other conditions like arthritis or muscle strains, which have different mechanisms and symptoms. While those conditions can also cause knee pain, patellofemoral pain syndrome specifically involves the area around the kneecap, making it critical to the correct identification and management of the condition.