Avascular Necrosis (AVN)
Avascular Necrosis (AVN) occurs when a bone’s normal blood supply is cut off. The affected bone cells die and the dead bone weakens and may begin to fracture and collapse, leading to arthritis. This most commonly occurs in the head of the femur (thigh bone) but can affect other bones in the body as well.
Symptoms of AVN include pain and loss of mobility in the hip joint, which may spread to the groin and down to the knee. This is most noticeable during physical activities, but eventually the joint may hurt even when at rest.
The most common cause of AVN is an injury such as a break or dislocation. It can also develop as a result of alcohol use, cancer treatments, prolonged use of corticosteroids or diseases such as Lupus or clotting disorders.
Medications, exercises and rest help to slow the progression of the disease. However, avascular necrosis of the hip typically needs to be treated with surgery.
Treatment Options for Avascular Necrosis (AVN)
- Core decompression
- Bone reshaping
- Osteotomy
- Bone grafting
- Joint replacement
