What is the meaning of aseptic necrosis?
Listen to pronunciation. (ay-SEP-tik neh-KROH-sis) A condition in which there is a loss of blood flow to bone tissue, which causes the bone to die. It is most common in the hips, knees, shoulders, and ankles.
What does necrosis of the hip mean?
Osteonecrosis of the hip is a painful condition that occurs when the blood supply to the head of the femur (thighbone) is disrupted. Because bone cells need a steady supply of blood to stay healthy, osteonecrosis can ultimately lead to destruction of the hip joint and severe arthritis.
What causes necrosis of the hip?
What causes osteonecrosis? Osteonecrosis of the hip develops when the blood supply to the femoral head is disrupted. Without adequate nourishment, the bone in the head of the femur dies and gradually collapses. As a result, the articular cartilage covering the hip bones also collapses, leading to disabling arthritis.
What is the cause of aseptic necrosis in bone?
Avascular necrosis occurs when blood flow to a bone is interrupted or reduced. Reduced blood supply can be caused by: Joint or bone trauma.
What is the treatment for avascular necrosis of the hip?
Regenerative medicine treatment. Bone marrow aspirate and concentration is a newer procedure that might help avascular necrosis of the hip in early stages. During surgery, the surgeon removes a sample of dead hipbone and inserts stem cells taken from bone marrow in its place. This might allow new bone to grow.
Can hip necrosis be cured?
Treatment can slow the progress of avascular necrosis, but there is no cure. Most people who have avascular necrosis eventually have surgery, including joint replacement. People who have avascular necrosis can also develop severe osteoarthritis.
How is osteonecrosis of the hip treated?
If the disease is caught in an early stage, the goal of therapy is to preserve the native joint for as long as possible. However, given that osteonecrosis often progresses, the mainstay of treatment is surgical, using either a joint-preserving procedure, if possible, or joint replacement.
How do you fix avascular necrosis of the hip?
The options include:
- Core decompression. A surgeon removes part of the inner layer of bone.
- Bone transplant (graft). This procedure can help strengthen the area of bone affected by avascular necrosis.
- Bone reshaping (osteotomy).
- Joint replacement.
- Regenerative medicine treatment.
Is there an alternative to hip replacement surgery?
Hip resurfacing surgery is an alternative to standard hip replacements for patients with severe arthritis. In a hip resurfacing surgery, the implant is smaller, and less normal bone is removed. Hip resurfacing is gaining interest, especially in younger patients.
What is aseptic necrosis?
Aseptic necrosis is a bone condition that results from poor blood supply to an area of bone, causing localized bone death. This is a serious condition because the dead areas of bone do not function normally, are weakened, and can collapse.
How is aseptic necrosis of the hip treated?
Early aseptic necrosis (before X-ray image changes are evident) can be treated with a surgical operation called a core decompression. This procedure involves removing a core of bone from the involved area and sometimes grafting new bone into the area. This allows new blood supply to form, preserving the bone.
What is avascular necrosis (AVN) of the hip?
Avascular Necrosis (AVN) of the Hip What is avascular necrosis (AVN) of the hip? Avascular necrosis (AVN) of the hip, also referred to as osteonecrosis or aseptic necrosis, is a condition where the blood supply to the ball of the hip joint (femoral head) is lost, causing the bone to die.
What are the symptoms of aseptic necrosis of the knee?
As the ball of the hip joint collapses from the degeneration of the bone from aseptic necrosis, pain in the groin can be felt with hip rotation and pain can sometimes be noted with rest after weight-bearing. Aseptic necrosis of the knee is often associated with pain or limping with walking.