Knee Pain. Patellofemoral pain syndrome,Chondromalacia patellae,Iliotibial Band fRICTION Syndrome,Patella Alta,Patellofemoral Arthritis, Patellar Tilt,Patellar Displacement,Anterior Knee Pain,Lateral Retinaculum,VMO Dysplasia.Excessive Lateral Patellar Pressure Syndrome,Patella Malalignment,Patellar Instabilty,Patella Maltracking,Patella Subluxation,Patella Dislocation,Synovial Plica,Tendinitis,Jumpers Knee,Congruence Angle,Malalignment of Extensor Mechanism,Patella Arthritis,Patella Fracture. Mystery of knee pain black hole of orthopedics- patellofemoral joint dr.sandeep c agrawal agrasen hospital gondia india