Convened under the auspicious of esteemed endorsers - ISTA

Introduction:Mike Reed - Wansbeck General Hospital - Ashinton, United KingdomPaul Partington - Wansbeck General Hospital - Ashington, United Kingdom*Email: ipgill@yahoo.comThe aim of this study is to report the results of Revision hip arthroplasty using large diameter,metal on metal bearing implants- minimum 2 year follow up.Methods:A single centre retrospective study was performed of 22 consecutive patients who underwentacetabular revision surgery using metal on metal bearing implants between 2004 and 2007.Birmingham hip resurfacing (BHR) cup was used in all patients - monoblock, uncemented,without additional screws in 16 cases and cemented within reinforcement or reconstruction ringin 6 cases.Femoral revisions were carried out as necessary.Results:There were 16 men and 6 women with a mean age of 71 years (51-83). Revision surgery wasperformed for aseptic loosening in 10, infected primary hip arthroplasty in 8, infectedHemiarthroplasty in 1 and Peri-prosthetic fracture with loosening in 3 patients. A 2-stagerevision was performed for all infected hips.One patient died and the remaining 21 patients had clinical and radiological assessment at amean 35 months (24-60). The mean Harris hip score was 75 (23-98) with 50% good toexcellent results.Only 1 patient had further revision to a proximal femoral replacement and constrained cup in 2stages for recurrent infection at 24 months.There were 2 recurrent infections (both revised for septic loosening) and 1 non-union oftrochanteric osteotomy.There were no dislocations in the group. No radiological loosening of implants or metal ioncomplications have been seen at last follow up.Conclusions:We believe this is the first reported series on the use of large diameter metal on metal bearingsurfaces for revision hip arthroplasty. Our series shows satisfactory short to medium termresults in this complex group of patients with no component loosenings, despite monoblockcups and no dislocations.file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]