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

Management of Patellofemoral Pain Syndrome

Patellar Instability Diagnosis & Treatment

Eunwook CHANG, Professor (Associate), PhD, Inha University, Incheon, Department of Kinesiology

Patellofemoral Joint - Physiopedia

Patellofemoral Pain Syndrome - OrthoInfo - AAOS

Hyung-Pil Jun's research works Dong-A University, Busan and other places

Patellofemoral-disorders – OrthoPaedia

Distribution of study subjects based on demographic characteristics.

Affected extremities; Soft tissue infection after long transfemoral

Patellar Instability - Knee & Sports - Orthobullets