Inclusion Criteria:  Knee pain during activities such as descending and ascending stairs, squatting, and running, Positive J sign (lateral tilt of patella), Sign of patellar malalignment on the radiograph  Exclusion Criteria:  Fracture around the knee, Patella dislocation, Knee deformity (e.g., genu varum), Knee flexion contracture, Ligaments/meniscal injuries, and Osteoarthritis of the knee.