Logo of The Journal of Bone & Joint Surgery (Br)
Quick search:        
          Advanced Search
Guest Access | Sign In
Journal of Bone and Joint Surgery - British Volume, Vol 89-B, Issue 1, 9-15.
doi: 10.1302/0301-620X.89B1.18011  
Copyright © 2007 by British Editorial Society of Bone and Joint Surgery
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Further opinion
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via ISI Web of Science (5)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Beaulé, P. E.
Right arrow Articles by Dorey, F. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Beaulé, P. E.
Right arrow Articles by Dorey, F. J.

The femoral head/neck offset and hip resurfacing

P. E. Beaulé, MD, FRCSC, Associate Professor1; N. Harvey, MD, Orthopedic Resident2; E. Zaragoza, MD, Associate Clinical Professor3; M. J. Le Duff, MA, Clinical Research Co-ordinator2; and F. J. Dorey, PhD, Professor and Statistitician4

1 Department of Orthopaedic Surgery, University of Ottawa, The Ottawa Hospital, 501 Smyth Road, Suite 5004, Ottawa K1H 8L6, Ontario, Canada.
2 Joint Replacement Institute, University of Southern California, 2400 South Flower Street, Los Angeles, California 90007, USA.
3 Department of Radiology, Santa-Monica UCLA Medical Center, 1245 16th Street, Santa Monica, California 90404, USA.
4 Department of Pediatrics, Norris University of Southern California Cancer Center, 657-OPT Children’s Hospital, 4650 Sunset Boulevard, Los Angeles, California 90027, USA.

Correspondence should be sent to Dr P. E. Beaulé; e-mail: pbeaule{at}Ottawahospital.on.ca

Because the femoral head/neck junction is preserved in hip resurfacing, patients may be at greater risk of impingement, leading to abnormal wear patterns and pain. We assessed femoral head/neck offset in 63 hips undergoing metal-on-metal hip resurfacing and in 56 hips presenting with non-arthritic pain secondary to femoroacetabular impingement. Most hips undergoing resurfacing (57%; 36) had an offset ratio ≤ 0.15 pre-operatively and required greater correction of offset at operation than the rest of the group. In the non-arthritic hips the mean offset ratio was 0.137 (0.04 to 0.23), with the offset ratio correlating negatively to an increasing {alpha} angle. An offset ratio ≤ 0.15 had a 9.5-fold increased relative risk of having an {alpha} angle ≥ 50.5°. Most hips undergoing resurfacing have an abnormal femoral head/neck offset, which is best assessed in the sagittal plane.






(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General