When the femur or upper leg bone fractures, the blood supply to that bone can be cut off. Sometimes this interruption in blood flow is temporary, other times it can be permanent. In the case of long term or permanent interruption, avascular necrosis occurs and bone tissue dies. When this happens, bones have a higher chance of breaking or collapsing completely.
Care of avascular necrosis can be a lifelong process. This condition occurs most commonly in the femur, wrist, knee and shoulder. Usually a fracture in one of these locations is the origin of avascular necrosis. However, chronic drinking or use of corticosteroids may also be to blame.
Treatment of avascular necrosis may include:
- Medications to control pain
- Rest of the affected joint or limb
- Strength building exercise
- In the most severe cases, surgery to decompress, reshape or replace the affected bone.