X-ray diagnosis of osteoarthritis

2022-05-08 0 By

The X-ray diagnostic criteria for osteoarthritis are joint space narrowing, subchondral sclerosis and cystic changes, and osteophyte formation.Subchondral cystic changes, often multiple and varying in size, with sclerotic edges, located in the pressure zone of the articular surface;The cystic changes in RHEUMAToid arthritis are generally located at the edge of the osseous articular surface without cartilage cover, and there is no sclerotic edge in the cystic area.Subchondral cystic changes can also be seen in avascular necrosis of the femoral head, but they are characterized by the collapse of the subchondral bone plate and the presence of joint Spaces.The knee space is generally divided into three parts: medial tibiofemoral space, lateral tibiofemoral space and patella space.Osteoarthritis often causes narrowing of one or two of the three Spaces, of which the medial tibiofemoral space is the most common, while patellofemoral space narrowing rarely occurs alone.In rheumatoid arthritis, narrowing of the joint Spaces affects all three Spaces.Osteoarthritis is distinguished from inflammatory, infectious, or neoplastic lesions by the absence of significant periarticular bone loss and erosion.Treatment (1) symptomatic treatment, physiotherapy.(2) Surgical treatment: arthroplasty, fusion, artificial joint replacement, etc., are feasible for those with large bone spurs at the joint margin and free body in the joint affecting function.