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Clinical Trial
. 2012 Jan;36(1):35-41.
doi: 10.1007/s00264-011-1299-2. Epub 2011 Jun 24.

Revision hip arthroplasty using a cementless modular tapered stem

Christophe Pattyn  1 , Alexander Mulliez, René Verdonk, Emmanuel Audenaert
Affiliations
Clinical Trial

Revision hip arthroplasty using a cementless modular tapered stem

Christophe Pattyn et al. Int Orthop. 2012 Jan.

Abstract

Purpose: Here we report the short-term clinical and radiological results of the Profemur®-R cementless modular revision stem.

Methods: Between June 2002 and May 2006, 68 revision hip arthroplasties were consecutively performed using this stem. Survival at a mean follow-up of 5.2 years was 94%. According to the Paprosky classification, the femoral defect was classified as type 1 in 39 hips (57.3%), type 2 in 18 hips (26.5%), type 3A in ten hips (14.7%) and type 3B in one hip (1.5%).

Results: The Harris Hip Score was 49.57 before surgery and averaged 78.28 at the latest follow-up. The Merle d'Aubigne score improved from 9.15 preoperatively to 14.30 postoperatively. Stem stability rated according to the Agora Roentgenographic Assessment (ARA) scoring system averaged 5.22, suggesting a high likelihood of a durable implant.

Conclusion: The revision prosthesis examined in this study can be considered a viable and useful option in revision hip arthroplasty, even in patients with bony femoral defects.

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Figures

Fig. 1
Fig. 1
Profemur®-R modular hip system
Fig. 2
Fig. 2
Well-fixed Profemur®-R modular hip system in a 85-year-old female patient 5 years postsurgery
Fig. 3
Fig. 3
Seventy-seven-year-old female patient. a Profemur®-R system after two-stage revision 6 weeks postsurgery for infection. b Loosening and subsidence of Profemur®-R stem 3 years postsurgery due to undersizing. c Revision using a bigger Profemur®-R modular stem
Fig. 4
Fig. 4
Survivorship analysis of Profemur®-R system with cumulative survival at 5 years
See this image and copyright information in PMC

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