The Role of Intertrochanteric Osteotomy in the Treatment of OsteonecrosisSanchez, Anthony M.D.; Khatod, Monti M.D.; Santore, Richard M.D.Section Editor(s): Aaron, Roy K. M.D. Techniques in Orthopaedics: March 2001 - Volume 16 - Issue 1 - p 61-65 Osteonecrosis of the Femoral Head: Articles Abstract Author Information Intertrochanteric osteotomy has a limited but useful role in carefully selected cases of osteonecrosis with small-sized necrotic sectors. In fact, the size of the lesion is a major factor in results from all methods of treatment for osteonecrosis, other than hip arthroplasty. A staging system that incorporates the size of the necrotic sector, such as the Steinberg classification system, is extremely helpful in assessing the outcomes of clinical series. Even initially successful osteotomies most often ultimately require conversion to total hip arthroplasty for the majority of patients. The conversion rate to total hip is approximately 50% at 10 years post osteotomy. Therefore, it is important for surgeons to perform the osteotomy in a manner that facilitates subsequent total hip replacement. From the Department of Orthopaedic Surgery, Sharp Memorial Hospital, San Diego, California (Dr. Santore and Dr. Sanchez). From the Department of Orthopaedics at the University of San Diego, San Diego, California (Dr. Khatod and Dr. Sanchez). Address correspondence and reprint requests to Richard Santore, MD, 7910 Frost Street, Suite 202, San Diego, CA, 92123. © 2001 Lippincott Williams & Wilkins, Inc.