Acetabular reconstruction with the Burch-Schneider ring: an EBRA analysis of 40 cup revisions

Acta Orthopaedica
T IlchmannK Weise

Abstract

Reconstruction of the bone stock and fixation of the implant remain challenging problems in revision surgery. In this retrospective study, we wanted to gain information on initial stability and wear after revision with the Burch-Schneider ring. Between 1994 and 1998, we performed 70 reconstructions of the acetabulum with a Burch-Schneider ring in revision arthroplasty. 63 patients could be followed up clinically and radiographically. 40 cups were suitable for EBRA measurements whereas migration and wear could not be assessed by this method in 23 cases due to lack of comparability of pelvic radiographs. The mean follow-up time was 4.7 years. 2 cups were re-revised and 14 cups had breakage or changes of position of the screws. 30 cups showed detectable migration and 18 cups detectable wear. The mean migration was 2.8 mm and the mean wear rate was 0.12 mm/year. 16 cups had detectable migration after 1 year; 11 of these 16 continued to migrate and 9 of them had screw breakage. Both re-revisions showed early migration. Early migration correlated with later screw breakage and the overall migration correlated with wear. The only risk factor found for early migration was the wear rate. The Burch-Schneider ring is an established and rel...Continue Reading

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Citations

Apr 14, 2011·European Journal of Medical Research·C ZilkensMarcus Jäger
Jun 7, 2008·The Journal of Arthroplasty·Falk Mittag, Torsten Kluba
Aug 1, 2015·International Orthopaedics·Thomas IlchmannMartin Clauss
May 31, 2013·The Journal of Arthroplasty·Nicholas A BeckmannRudi G Bitsch
Aug 5, 2017·Acta Orthopaedica·Pascal Mueller GreberMartin Clauss
Mar 3, 2012·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Luke JonesGian Singer
Oct 30, 2016·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Axel MarxAndreas M Halder
Oct 27, 2012·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Perrico NunagMartin Sarungi
Nov 5, 2013·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Sameer JainPeter V Giannoudis
Dec 3, 2014·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Martin Krismer, Rainer Biedermann

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