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Meta-Analysis
. 2013 Jun;37(6):995-9.
doi: 10.1007/s00264-013-1867-8. Epub 2013 Mar 24.

Pooled outcome of total hip arthroplasty with the CementLess Spotorno (CLS) system: a comparative analysis of clinical studies and worldwide arthroplasty register data

Patrick Sadoghi  1 , Wolfgang Janda, Mark Agreiter, Rauend Rauf, Andreas Leithner, Gerold Labek
Affiliations
Meta-Analysis

Pooled outcome of total hip arthroplasty with the CementLess Spotorno (CLS) system: a comparative analysis of clinical studies and worldwide arthroplasty register data

Patrick Sadoghi et al. Int Orthop. 2013 Jun.

Abstract

Purpose: Our aim was to elucidate the pooled outcome of the CementLess Spotorno (CLS) system in total hip arthroplasty (THA).

Methods: We compared the outcome of clinical inventor studies, independent clinical studies, and worldwide register data. The main endpoints for analysis were revision rates.

Results: Twenty clinical studies were evaluated and, with one exception, overall found revision rates largely in line with register data. Revision rates (revisions per 100 observed component years) range from 0.15 (inventor study) to 0.28 (independent studies) and 0.43 (register datasets).

Conclusion: Data of journal publications and register datasets using the CLS system do not differ significantly with respect to revision rates. Only the initial inventor study reports a revision rate three times lower than in pooled worldwide register datasets.

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Figures

Fig. 1
Fig. 1
Years passed after primary implantation (in 1985) of the CementLess Spotorno (CLS) system (Zimmer, Warsaw, IN) in total hip arthroplasty (THA) before publication of 20 clinical studies evaluating its revision rate [–24]. The first articles were published eight years after primary implantation
Fig. 2
Fig. 2
Pooled relative revision rates of the CementLess Spotorno (CLS) system (Zimmer, Warsaw, IN) in total hip arthroplasty (THA) of one inventor study [6], 19 independent studies [, –24] and worldwide arthroplasty register datasets [25] in percent
See this image and copyright information in PMC

References

    1. Labek G, on behalf of the QoLA Study Group. Quality of publications regarding the outcome of revision rate after arthroplasty—interim report of the QoLA Project presented at the EFORT Congress 2010 in Madrid. http://www.ear.efort.org/. Accessed 26 February 2013
    1. Graves S. The value of arthroplasty registry data. Acta Orthop. 2010;81(1):8–9. doi: 10.3109/17453671003667184. - DOI - PMC - PubMed
    1. Labek G, Frischhhut S, Schlichtherle R, Williams A, Thaler M. Outcome of the cementless Taperloc stem: a comprehensive literature review including arthroplasty register data. Acta Orthop. 2011;82(2):143–148. doi: 10.3109/17453674.2011.570668. - DOI - PMC - PubMed
    1. Labek G, Sekyra K, Pawelka W, Janda W, Stöckl B. Outcome and reproducibility of data concerning the Oxford unicompartmental knee arthroplasty: a structured literature review including arthroplasty register data. Acta Orthop. 2011;82(2):131–135. doi: 10.3109/17453674.2011.566134. - DOI - PMC - PubMed
    1. Bläsius K, Cotta H, Schneider U, Thomsen M. CLS multicenter study—8-year results. Z Orthop Ihre Grenzgeb. 1993;131(6):547–552. doi: 10.1055/s-2008-1040069. - DOI - PubMed

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