THA: Early migration of acetabular cups associated with late revision due to loosening .
This report has been verified
by one or more authors of the
original publication.
Early proximal migration of cups is associated with late revision in THA: a systematic review and meta-analysis of 26 RSA studies and 49 survivalstudies
Acta Orthop. 2012 Dec;83(6):583-91. doi: 10.3109/17453674.2012.745353. Epub 2012 Nov 5Exclusive Author Interview
Dr. Pijls discussing the association between early migration of acetabular cups and late aseptic revision.
Two parallel systematic reviews and meta-analyses were performed to determine the affiliation between early migration of acetabular cups and late aseptic revision. One review covered the early migration data from radio-stereometric analysis (RSA) studies (26 studies involving 700 cups), and the other focused on revision rates for aseptic loosening from long-term survival studies (49 studies involving 38,013 cups). The results showed that there was a clinically significant association between early migration of acetabular cups and late revision due to loosening; cups with proximal migration of between 0.2 and 1.0 mm were considered to be at risk of having revision rates greater than 5% at 10 years. Furthermore, cups with proximal migration of more than 1.0mm were considered unacceptable, as all of them showed revision rates of more than 5% at 10 years
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