The J-sign, known as the lateral patellar tracking on anterior view

Patellofemoral Pain Syndrome

Patellar instability can be classified into four types based on

Patient-Reported Features of Lumacaftor-Ivacaftor associated

Anterior and posterior views of the patella with the anterior view

Patellofemoral pain syndrome - Wikipedia

PDF) The Effect of McConell Tape on Patients with Patellofemoral Pain

Patellar Apprehension Sign - Physiopedia

Anterior Knee Pain: State of the Art

Score transforming of self-designed economic insecurity questionnaire 表