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
Information obtained by Vicky Marlow Updated 6/15/08
Why Indian Surgeons Have Better Results with Hip Resurfacing AVN Patients
The longest follow-up has been 7 1/2 yrs and a lot of patients have crossed 5 yrs.I am not the only one who is having a good result with AVN.Prof Yoo from Korea has not had a single failure yet for AVN resurfacing. The same goes for Dr. Sugano from Osaka, Japan.The 3 of us together have done more than 1,000 resurfacings for AVN.AVN is much more common in Asia when compared to the rest of the world.Derek McMinn has a 10% failure rate for AVN when compared to 1% for osteoarthritis.The Australian joint replacement registry also shows a slightly higher failure rate for AVN than for OA among the Australian surgeons.In… Read the rest
Story provided by Vicky Marlow
Dr. Bose explains why a female patient with advanced AVN was not able to receive a hip resurfacing.
During the surgery there was a large AVN lesion up to half of the femoral head. In spite of this we tried all the tricks in the book to do a resurfacing. The head neck junction was involved and the residual bone was chalk like and soft. These features made a resurfacing impossible. Since the head–neck junction was involved a BMHR was also not feasible. Therefore I used a stem with an anatomical head metal on metal bearing. This will serve the patient very well.I have attached the operative photographs. Since the patient had very small bone size I used the ASR components. I use the ASR for almost all Asian women due to the small bone size. I find a distinct advantage with the ASR