What happens when the femoral head collapse?
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.
How are bone cysts treated?
Bone Cyst Treatment Most often bone cysts resolve with time. Repeated X-rays are usually done to make sure the cyst is getting smaller. If a pathologic fracture occurs, the cyst may need to be surgically cleaned and then packed with bone graft to fill in the bone and encourage bone healing.
What is femoral head necrosis?
Avascular necrosis (AVN) of the femoral head is a pathologic process that results from interruption of blood supply to the bone. AVN of the hip is poorly understood, but this process is the final common pathway of traumatic or nontraumatic factors that compromise the already precarious circulation of the femoral head.
What leads to necrosis of head of femur?
These causes include fractures, dislocations, chronic steroid use, chronic alcohol use, coagulopathy, congenital causes; among many others. Avascular necrosis of the femoral head is a debilitating disease and is an important condition requiring healthcare professionals to be vigilant for its presentation.
What causes flattening of the femoral head?
When avascular necrosis occurs in the hip joint, the top of the femoral head collapses and begins to flatten. This is where most of the weight is concentrated. The flattening creates a situation where the femoral head no longer fits perfectly inside the socket. The joint begins to wear itself out.
Do bone cysts weaken bone?
What are the symptoms of bone cysts? Benign (noncancerous) bone cysts generally do not cause pain, but if they are large enough they can weaken the bone and cause it to fracture.