knee joint pain in caucasian man. concept of osteoarthritis, rheumatoid arthritis or ligament injury

knee joint pain health injury anatomy medical physiotherapy xray bones arthritis inflammation rehabilitation fitness sports muscle discomfort human healthcare problem treatment tendon leg cartilage support person exercise ligaments motion posture recovery movement therapy wellness skeletal care stiffness surgery athlete bone diagnosis painrelief jointhealth caucasian man concept osteoarthritis rheumatoid ligament close-up holding highlighted glowing visualization structure symbolizing