old retro plain x ray of the right knee shows apparent joint osteoarthritis by kellgren and lawrence system for classification of

accident ache anatomy apparent arthritis body bone bones classification definite deformity diagnosis grade inflammation injured injury join joint kellgren knee lateral lawrence leg medical medicine multiple muscle narrow narrowing old orthopedic osteoarthritis osteophytes pain painful physical plain posteroanterior pxr radiology ray replacement retro right sclerosis shows skeleton space sprain strain surgery symptom system tendon therapy treatment view xray