Ключевые слова: anatomy, arthritis, biology, bone, cartilage, clinic, clinical, closeup, concept, diagnosis, disease, femur, healthcare, human, illustration, inflammation, injury, joint, knee, leg, ligament, medical, medicine, orthopedic, orthopedics, osteoporosis, pain, patient, physical, physiology, skeletal, skeleton, surgery, synovial, tendon, therapy, tissue, treatment,