chondromalacia patella. flattened femoral groove

abnormality anatomy arthritis articular bone care cartilage chondromalacia damage degeneration disease dislocation disorder erosion femur health human hypoplasia illustration image inflammation injury instability joint knee kneecap leg medical medicine meniscus normal orthopaedic orthopedic osteoarthritis pain patella patellofemoral podiatry problem rheumatism runner soft sport sprain surgery syndrome therapy treat vector wear