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The effect of anteversion on femoral component stability assessed by radiostereometric analysis


Reference:

Gill, H. S., Alfaro-Adrian, J., Alfaro-Adrian, C., McLardy-Smith, P. and Murray, D. W., 2002. The effect of anteversion on femoral component stability assessed by radiostereometric analysis. Journal of Arthroplasty, 17 (8), pp. 997-1005.

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Official URL:

http://dx.doi.org/10.1054/arth.2002.34531

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Abstract

Internal rotation of a femoral stem within the femur, with posterior migration of the femoral head (PHM) relative to the femur, is an important mode of failure. The relationship between anteversion and rotational stability for the Exeter (Howmedica International Ltd, London, UK) and Charnley Elite (DePuy International Ltd, Leeds, UK) stems was investigated using radiostereometric analysis (RSA). For the Elite, there was a significant (P=.01) correlation between anteversion and PHM, whereas for the Exeter, there was no significant correlation (P=.6). Increasing anteversion of the Elite was associated with decreasing PHM and increased stability. Of stems, 20% of the Elite and none of the Exeter were classified as having reduced rotational stability because their PHM was >2 SDs from the mean. All reduced rotational stability implants had anteversion substantially

Details

Item Type Articles
CreatorsGill, H. S., Alfaro-Adrian, J., Alfaro-Adrian, C., McLardy-Smith, P. and Murray, D. W.
DOI10.1054/arth.2002.34531
Related URLs
URLURL Type
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12478509PubMedCentral
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresCentre for Orthopaedic Biomechanics
RefereedYes
StatusPublished
ID Code30865

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