bursitis inflammation concept

bursitis knee kneecap patella joint arthritis pain anatomy bursa bone human vector inflammation inflamed disease muscle osteoarthritis hospital xray illustration cortisone bursectomy problem orthopedic osteoporosis diagram ache fitness sport injection clinic deformity hurt treatment scan ligament system synovial osgood anserine schlatter prepatellar capsule meniscus patellar anserinus suprapatellar infrapatellar pes runner