What is Kerboul angle?
What is Kerboul angle?
The Kerboul angle is the sum of the angles formed by the extent of femoral head lesion and the center of femoral head on anteroposterior (A) and lateral (B) radiographs of hip.
How do you calculate Kerboul angle?
To calculate, first identify the center of the femoral head. Two lines are then drawn from this point to the borders of the lesion on both AP and lateral radiographs. The sum of the angles on the AP and lateral radiographs is the Kerboul angle.
What is hip core decompression?
Hip core decompression is a surgical procedure used to treat osteonecrosis, or avascular necrosis (AVN) of the hip. It involves drilling one larger hole, or several smaller holes into the dead bone of the femoral head (top of thigh bone) in order to relieve pressure in the bone.
Does exercise help avascular necrosis?
Exercise or physical activity that doesn’t involve putting weight through the hip joint is recommended, particularly for those that are in more advanced stages of AVN. Hydrotherapy, with its warm and buoyant properties can provide relief to the area as well as improved range of motion (movement) (2).
What are the stages of AVN?
Stage 1 has a normal x-rays but MRI reveals the dead bone. Stage 2 can be seen on regular x-ray but there is no collapse of the femoral ball. Stage 3 shows signs of collapse (called a crescent sign) on x-ray. Stage 4 has collapse on x-ray and signs of cartilage damage (osteoarthritis).
What causes lack of blood flow to the hip?
Injuries, such as hip dislocation or fracture, can damage nearby blood vessels and reduce blood flow to bones. Steroid use. Use of high-dose corticosteroids, such as prednisone, is a common cause of avascular necrosis.
How do you decompress your hips?
- Sit up straight with your buttocks firmly touching the floor.
- Bend your knees and place the bottoms of your feet together so that your heels touch.
- Take a deep breath in to center your stretch.
- Gently press your knees down on both sides toward the floor and breathe out. You may hear your hip pop.
Can I live with AVN?
Because of these complications, the affected person has to slowly, and very painfully, endure the joint collapse and withstand the pain and loss of mobility as long as possible before undergoing the first joint replacement. This is no way to live.
What are the causes of AVN?
What causes avascular necrosis?
- Damage to blood vessels.
- Long-term use of medicines, such as corticosteroids.
- Excessive, long-term use of alcohol.
- Specific chronic medical conditions.
How does avascular necrosis occur?
Avascular necrosis occurs when blood flow to a bone is interrupted or reduced. Reduced blood supply can be caused by: Joint or bone trauma. An injury, such as a dislocated joint, might damage nearby blood vessels.