Neurobionplus
Home About Journal AHEAD OF PRINT Current Issue Back Issues Instructions Submission Search Subscribe Blog    
Login 

Users Online: 1691 
Print this page  Email this page Small font sizeDefault font sizeIncrease font size 
ORIGINAL ARTICLE
Year : 2012  |  Volume : 46  |  Issue : 2  |  Page : 212-215

Femoral head-neck offset in the Indian population: A CT based study


Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Dharmesh Khatri
Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi
India
Login to access the Email id

Source of Support: Council of Scientific and Industrial Research, Conflict of Interest: None


DOI: 10.4103/0019-5413.93681

Rights and Permissions

Background: Femoroacetabular impingement has been postulated as the important cause of primary osteoarthritis in non dysplastic hips. We postulated that the rarity of primary osteoarthritis of hip in Indian population could be attributable to morphological differences, specifically to a lower prevalence of abnormal head-neck morphology. We conducted an anthropometric study to evaluate the prevalence of abnormal head-neck offset in Indian population and to correlate it with the low prevalence of primary osteoarthrosis in the Indian population. Materials and Methods: The computed tomography (CT) images of 85 apparently normal hips were analysed. An axial image was created parallel to the central axis of the femoral neck and passing through the center of the femoral head using coronal scout view. This image was then used to calculate alpha and beta angles and the head-neck offset ratio. The measurements were made by two independent observers on two different occasions. Results: The prevalence of abnormal head-neck offset ratio was 11.7% and the mean alpha and beta angles were 45.6° and 40.6°, respectively. Pearson correlation coefficients for intra-observer and inter-observer agreement were, respectively, 0.84 and 0.80 for alpha angle, 0.80 and 0.77 for beta angle and 0.78 and 0.75 for head-neck offset ratio. The values were similar to those reported in the western population. Conclusion: The differences in the prevalence of hip osteoarthritis in Indian and western populations are not attributable to variation in the prevalence of abnormal head-neck offset.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed3726    
    Printed94    
    Emailed1    
    PDF Downloaded151    
    Comments [Add]    
    Cited by others 2    

Recommend this journal