What is avascular necrosis?
Avascular necrosis of the hip occurs when the blood supply to the femoral head is reduced, causing part of the bone of the femoral head to die.
Lack of blood supply can occur from a fracture or dislocation, or from chronic medical conditions such as diabetes, prolonged steroid use and excessive tobacco or alcohol consumption. The lack of blood supply causes the bone cells to die, and may eventually result in collapse of the bone.
how is avascular necrosis treated?
Early diagnosed avascular necrosis, without femoral head collapse, may be treated via hip arthroscopy.
In more severe cases, a minimally invasive hip replacement is the preferred treatment option