Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Catherine Burt Driver, MD, is board certified in internal medicine and rheumatology by the American Board of Internal Medicine. Dr. Driver is a member of the American College of Rheumatology. She currently is in active practice in the field of rheumatology in Mission Viejo, Calif., where she is a partner in Mission Internal Medical Group.
Aseptic necrosis is a bone condition that results from poor blood supply to an area of bone, causing localized bone death.
Aseptic necrosis can be caused by trauma, damage to the blood vessels that supply bone its oxygen, poor blood circulation to the bone, abnormally thick blood (hypercoagulable state), and atherosclerosis or inflammation of the blood vessel walls (vasculitis).
Steroid medications (cortisone, such as
prednisone [Deltasone, Liquid
Pred] and methylprednisolone
[Medrol, Depo-Medrol]) are the most common medications to cause aseptic necrosis.
The treatment of aseptic necrosis is critically dependent on the stage of the condition.
What is aseptic necrosis?
Aseptic necrosis is a bone condition that results from poor blood
supply to an area of bone, causing localized bone death. This is a serious
condition because the dead areas of bone do not function normally,
are weakened, and can collapse. Aseptic necrosis is also referred to as avascular necrosis
Reviewed by Catherine Burt Driver, MD on 10/17/2011
An MRI (or magnetic resonance imaging) scan is a
radiology technique that uses magnetism, radio waves, and a computer
to produce images of body structures. The MRI scanner is a tube
surrounded by a giant circular"...