Avascular necrosis or osteonecrosis is the death of a segment of bone due to loss of blood supply. Both bone cells are the bone marrow are affected. AVN is a common cause of hip pain in young and middle aged patients between 35-50 years of age. It occurs more in males. AVN leads to severe degenerative arthritis of the hip joint and accounts for 10% of total hip replacement cases in the United States.… Read the Rest
Bone requires a constant blood supply to remain healthy; without it, bone begins to die and collapse. This is called avascular necrosis, literally bone death due to lack of blood vessels. In the hip, the head of the femur (the acetabulum, or “ball”) is primarily affected. If not treated, the joint surface breaks down, leading to arthritis, pain and disability.
The most common reason why the femoral blood supply is compromised is a hip fracture … Read the Rest
Total hip replacement in younger patients Authors: Wolfgang Schneider; Karl KnahrSource: Acta Orthopaedica Scandinavica, Volume 75, Number 2, April 2004 , pp. 142-146(5)Publisher: Taylor and Francis LtdAbstract:
Background A high risk of loosening has been reported in replacements performed because of avascular necrosis.
Patients and methods To study cementless total hip replacement (THR) in younger patients with avascular necrosis (AVN), we analyzed retrospectively the outcome in 129 cases: 46 Mittelmeier monobloc ceramic … Read the Rest
AVN (Avascular Necrosis) or ON (Osteonecrosis. What is AVN, what causes it and how to repair AVN damage.
AVN is a hip joint problem where the blood supply to the femoral head (ball portion) of the joint is reduced or obliterated. This causes this portion of the bone to die, which leads to the collapse of the effected bone and femoral head surface. There are many causes of AVN such as use of corticosteroids, over … Read the Rest
Treatment of Osteonecrosis of the Femoral Head by Core Decompression, Bone Grafting,
Link http://www.uphs.upenn.edu/ortho/oj/1997/oj10sp97p24.html M. E. Steinberg, M.D., P. Larcom, M.D., B. Strafford, M.D., W. B. Hosick, M.D., A. Corces, M.D., R. E. Bands, M.D., K. Hartman
Abstract: Core decompression is one of the more popular procedures for the treatment of early stages of avascular necrosis (AVN) of the femoral head. However, the controversy regarding its safety and effectiveness continues. In an attempt to clarify … Read the Rest