Which symptoms are associated with chondromalacia patellae?

The symptoms associated with chondromalacia patellae primarily include anterior knee pain and sensations of catching or grinding in the knee. Chondromalacia patellae is a condition characterized by the softening and damage of the cartilage on the underside of the kneecap (patella). The resulting pain often presents itself during activities that put stress on the knee joint, like going up or down stairs, squatting, or sitting for extended periods, where the knee is flexed.

The sensations described, such as catching or grinding, arise from the irregularities in the cartilage, which can lead to abnormal movement and friction between the patella and the femur. This is a hallmark of the condition and helps distinguish it from other knee issues.

Other options mention symptoms that do not accurately reflect chondromalacia patellae. Swelling of the ankle, pain during hip rotation, and posterior knee pain can be indicative of other conditions affecting different parts of the knee or related areas but are not specific indicators for chondromalacia patellae. Therefore, the presence of anterior knee pain and catching sensations is a strong indicator of this condition.