Osteonecrosis (Subscribe)  

An Expert Interview With Dr. Thomas Einhorn
Stem cell research has caused much public controversy, sparking debate on ethics, cost, and legislation. Advocates of stem cell research believe that the use of adult stem cells holds promise of widespread applications, especially in the area of orthopaedics. Pippa Wysong of Medscape sat with...

Nucleus Medical Art
Illustrations and account of the condition
Avascular necrosis is a disease resulting from the temporary or permanent loss of the blood supply to the bones. Without blood, the bone tissue dies and causes the bone to collapse. If the process involves the bones near a joint, it often leads...

AVN of medial clavicle

Osteonecrosis bespeaks bone death. Synonyms include aseptic necrosis, bone necrosis, avascular necrosis, bone infarction and ischemic necrosis. By convention, the terms "aseptic" or "avascular" necrosis have been applied to areas of juxtaarticular involvement and the term bone infarct is usually applied to metaphyseal or diaphyseal involvement. However, this terminology is...

Notes on
AVN
AVN Hip
AVN Knee
Osteochondritis Dessicans

Presentation by D Hungerford 2003

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...