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Rheumatology Advance Access published online on July 6, 2004
Rheumatology, doi:10.1093/rheumatology/keh292
Rheumatology © British Society for Rheumatology 2004; all rights reserved
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Received September 10, 2003
Accepted May 28, 2004

Original Papers

Influence of previous open synovectomy on the outcome of Souter-Strathclyde total elbow prosthesis

J. C. T. van der Lugt 1*, R. B. Geskus 1, P. M. Rozing 1

1 Leiden University Medical Center, Orthopaedics, Leiden, The Netherlands

* To whom correspondence should be addressed. E-mail: j.c.t.van_der_lugt{at}lumc.nl.


  Abstract

Objectives. Open synovectomy of the elbow joint is often performed in early stages of rheumatoid arthritis. Because of poor long-term results after synovectomy, insertion of a total elbow prosthesis is commonly used as a secondary procedure. The aim of this study is to evaluate the influence of previous synovectomy on the outcome after placement of a total elbow prosthesis.

Methods. We inserted 204 primary Souter-Strathclyde total elbow prostheses for rheumatoid arthritis. Two groups could be distinguished: group A with previous synovectomy 3.9 yr (mean) before the elbow replacement (n = 33) and group B without previous synovectomy (n = 171). The mean follow-up was 5.8 yr for group A and 6.3 yr for group B. All patients were assessed clinically and radiologically before the operation, 1 and 2 years later and then at regular intervals. The effect of previous synovectomy was analysed via a Cox model and a generalized linear mixed model for binomial data with multivariate normal random effects.

Results. No statistically significant effect of previous synovectomy on pain, function or complaints of the ulnar nerve could be found post-operatively. The post-operative flexion was significantly higher in group B than in group A. The complication-rates were similar for both groups. The overall survival rate for respectively group A and B with revision as endpoint was 66.9% (s.e. 13.4) versus 79.6 (s.e. 4.3) after 10 yr.

Conclusions. Previous synovectomy does not diminish the outcome after total elbow prosthesis in this series and could therefore be considered in early, painful stages of rheumatoid destruction of the elbow joint.

Keywords: Elbow joint; Elbow prosthesis; Open synovectomy; Rheumatoid arthritis; Souter-Strathclyde.
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