knee bursitis. prepatellar bursitis

039 ache anatomy anterior arthritis beat bone bursa bursae bursitis capsule carpet coal comparison cutter difference disease femur fluid fracture front health healthy housemaid human illustration inflammation infrapatellar injury joint knee kneecap lateral layer leg medical meniscus miner nun osteoarthritis osteoporosis pain patella patellar prepatellar rheumatoid rug sacs section side skeleton sore sport suprapatellar swelling synovial tendinitis tendon therapy trauma treatment vector view