Radiology Cases Osteonecrosis Osteochondritis Dissecans LSBU

Description: Interruption of vascular supply to a bone has a greater effect at the bone ends where the perfusion arrives from one side only. Osteonecrosis frequently involves joints. The local geometry and the covering of cartilage must be relevant. Weight bearing over a small area of bone is also related to the osteonecrosis that affects the hips in combination with certain non-steroidal anti-inflammatory drugs ( perhaps permitting joint overuse).