Radiological signs of osteoarthritis  

  • Irregular joint space narrowing  

  • Subchondral sclerosis: a dense area of bone (visible on x-ray) just below the cartilage zone of a joint.

  • Osteophytes (bone spurs): spurs or densifications that develop on the edges of the joint. 

  • Subchondral cyst: a fluid-filled cyst that develops on the surface of a joint

  • Lateral compartment osteoarthritis of the knee X-ray right knee (AP view) Marked lateral compartment narrowing  is accompanied by subchondral sclerosis and osteophyte formation. Tibial spine osteophytes are also visible.

  • Degenerative disease of spine with osteophyte formation and vacuum disc phenomenon.