bursitis inflammation concept

bursitis knee kneecap patella joint arthritis pain anatomy bursa bone human vector inflammation inflamed disease muscle osteoarthritis hospital xray rheumatoid illustration cortisone bursectomy cartilage orthopedic osteoporosis medical traumatology body fitness sport surgery hurt treatment ligament system synovial osgood anserine schlatter prepatellar capsule patellar anserinus suprapatellar infrapatellar pes runner silhouette man