HIP REPAIR USING STEM CELLS There is a problem with the blood supply to the bone in the hip and as a result of that the bone dies. And as the bone dies it becomes removed by cells in the body and the hip will collapse. There is a clinical trial using stem cells to repair the hip. Here is how it works: The doctor pulls out about six ounces of bone marrow from the patients pelvis through a small, quarter inch incision. He then spins it down in a centrifuge to concentrate the stem cells and then through another tiny incision, injects these cells back into the patient through a small drill hole in the dying hip. The idea being that those cells would make bone, they would recruit cells that make blood vessels and can restore the blood supply, and in doing so, recreate live bone in the femoral head of the hip, preventing it from going on to collapse. At Boston University Medical Center there has been an ongoing clinical trial for 3 years doing this with an 85-percent success rate. Patient are carefully selected though, meaning those in whom the hip hasn't gone so far that the entire hip has collapsed.
OTHER DEVELOPMENTS Arthroscopy to repair hip instead of replacing it;