Abstract
The aim of this study was to document the medium-term results of the use of fluted, tapered, titanium femoral stem in revision total hip arthroplasty.
Seventy patients undergoing total hip revision using a tapered, grid-blasted titanium modular femoral stem were reviewed at a mean follow-up time of 47 months. Femoral defects were classified according to the Pak and Paprosky system, and femoral bone quality was assessed with the Bohm and Bischel system. Clinical function was measured by the Oxford Hip Score. Radiograpic analysis was performed in all cases.
Stems were classified as a failure or re-revision in 4.3% of the cases. Three required reoperation for recurrent dislocation, in each case the femoral component alone had been revised during the most recent revision. The postoperative mean Oxford Hip Score was 20.9. Subsidence of the component was noted in 84% of hips but did not cause a significant problem. Final leg length discrepancy was 5.4mm.
The results of this titanium, tapered, grid-blasted modular stem compares favourably with other revision stems including the Oxford Hip Score compared to the results for revisions recorded in the National Joint Register (Oxford Score 24.3). Although technically demanding this stem offers a very satisfactory solution for revision of total hips in almost all circumstances.
The abstracts were prepared by Jean-Claude Theis. Correspondence should be addressed to him at Department of Orthopaedic Surgery, Dunedin Hospital, Private Bag 1921, Dunedin, New Zealand.
