Document Detail

Charnley-Kerboull total hip arthroplasty combining zirconia on polyethylene. A minimum eight-year follow-up prospective study.
MedLine Citation:
PMID:  23371426     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Zirconia was introduced in the 1980s for total hip arthroplasty (THA) with the expectation of lower polyethylene wear. The purpose of this prospective study was to evaluate the results of a continuous series of total hip arthroplasties combining a zirconia head with polyethylene socket at a minimum eight-year follow-up.
METHODS: We performed an open prospective clinical trial in 1997. Our study involved 51 consecutive patients (55 hips) with a mean age of 52.5 ± 12 years (range, 25-76 years). All patients had a Charnley-Kerboull all-cemented hip replacement. A 22-mm stabilised yttrium tetragonal polycrystalline zirconia head (Y-TZP) was used in association with moderately cross-linked and annealed polyethylene. Clinical and radiological outcomes were assessed yearly. A survival analysis was performed using revision for any reason as the end-point.
RESULTS: At a minimum eight-year follow-up, 12 patients (13 hips) were lost to follow-up (mean 26.8 months), two patients (two hips) had died, and six patients (six hips) were revised. The remaining 31 patients (34 hips) were alive and had not been revised on either the femoral or acetabular side at a mean follow-up of 117.1 months (range, 96-150 months). Mean functional score at last follow-up was 17.7. Mean linear head penetration was 0.23 mm/year. More than 90% of the remaining hips had signs of periprosthetic osteolysis. Five stems were loosened. The survival at eight years was 87.3% (95% IC: 76.7-97.8).
CONCLUSION: This study confirms earlier short-terms results, and demonstrates that zirconia should no longer be used in THA.
Jean Langlois; Samer El Hage; Faouzi Madi; Jean-Pierre Courpied; Marcel Kerboull; Moussa Hamadouche
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Publication Detail:
Type:  Journal Article     Date:  2013-01-31
Journal Detail:
Title:  International orthopaedics     Volume:  37     ISSN:  1432-5195     ISO Abbreviation:  Int Orthop     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-25     Completed Date:  2013-06-28     Revised Date:  2014-03-06    
Medline Journal Info:
Nlm Unique ID:  7705431     Medline TA:  Int Orthop     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  355-60     Citation Subset:  IM    
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MeSH Terms
Arthroplasty, Replacement, Hip / methods*
Biocompatible Materials
Follow-Up Studies
Hip Joint / surgery*
Hip Prosthesis
Joint Diseases / surgery*
Middle Aged
Prospective Studies
Prosthesis Design
Reg. No./Substance:
0/Biocompatible Materials; 9002-88-4/Polyethylene; C6V6S92N3C/Zirconium; S38N85C5G0/zirconium oxide
Comment In:
Int Orthop. 2013 Jul;37(7):1413   [PMID:  23695882 ]
Int Orthop. 2013 Jul;37(7):1415   [PMID:  23685879 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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