Document Detail

Acceptable long-term results after Boneloc hip arthroplasty.
MedLine Citation:
PMID:  23905563     Owner:  NLM     Status:  In-Data-Review    
INTRODUCTION: As the only femoral stem, the Exeter stem has shown acceptable results with Boneloc cement, but no long-term results have been published. The aim of this study was to evaluate the 20-year performance of Boneloc-cemented primary Exeter hip arthroplasty.
MATERIAL AND METHODS: From March 1992 to June 1994, a total of 200 consecutive Boneloc-cemented primary hip arthroplasties were performed in 183 patients aged 26-90 years, mean 71 years. At follow-up after 18-20 years, the primary endpoint was prosthetic survival assessed by the Kaplan-Meier analysis. Secondary endpoints were clinical and radiographic follow-up examination.
RESULTS: After a mean 18.4 (17.6-19.6)-year period, 27 patients/32 hips had been revised. At endpoint revision for any reason the 20-year cumulative overall survival was 73% (95% confidence interval (CI): 49-89%); at endpoint revision for aseptic loosening the 20-year cumulative survival was 84% (95% CI: 68-96%) for the stem and 76% (95% CI: 61-92%) for the cup. Cementing technique, implant size and metal backing of the cup were not associated with revision rates. A total of 23 patients/24 hips had clinical/radiog-raphic examination, and 10 patients/12 hips were assessed by telephone. According to patient reported evaluation, all were very satisfied or satisfied. Radiographs showed loosening of two cups and possible loosening of two stems.
CONCLUSION: This study provides the first long-term results on Boneloc-cemented primary hip arthroplasty. The Exeter prosthesis, especially the stem, maintains the previously published acceptable survival and results despite the documented inferior quality of the cement.
FUNDING: not relevant.
Per B Thomsen; Jesper Dalsgaard; Dovydas Vainorius; Torben Bæk Hansen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Danish medical journal     Volume:  60     ISSN:  2245-1919     ISO Abbreviation:  Dan Med J     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-08-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101576205     Medline TA:  Dan Med J     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  A4671     Citation Subset:  IM    
Ortopædkirurgisk Forskningsenhed, Regionshospitalet Holstebro, Lægårdsvej 12, 7500 Holstebro, Denmark.
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