Avascular necrosis of femoral head, primary is a specific form of avascular necrosis (AVN). AVN is most common in men and older people around 40 or 50 years old. The femoral head is the area of the bone at the top of the thigh bone, at the hip. The disorder occurs when cells die in the bones from problems with the body’s blood supply, which leads to problems with the bones.
The cause of avascular necrosis of femoral head, primary is unknown, however some studies suggest that alcohol, blood clots in veins, and steroid use are possible factors. There have also been two cases of AVN that show a dominantly inherited gene that was passed from a parent to a child to cause this disorder. Treatment for AVN often includes hip joint replacement. If you or a family member has been diagnosed with avascular necrosis of femoral head, primary, talk with your doctor about the most current treatment options as well as signs that you may need immediate medical attention. Support groups are also good sources for support and information that you may consider contacting.