knee joint model on white background, isolate. knee ligamentous apparatus diseases treatment concept, close-up

anatomical anatomy apparatus arthrosis background bend biology body bone bones bursitis calcium care cartilage closeup concept disease fibula fluid health human illness injury isolate isolated joint knee kneejoint layout leg ligament ligamentous ligaments medical medicine meniscus model orthopedic osteoporosis pain people physician science skeletal skeleton stiflejoint surgery synovial therapy treatment white