eprintid: 19443
rev_number: 16
eprint_status: archive
userid: 1589
dir: disk0/00/01/94/43
datestamp: 2016-01-12 13:55:00
lastmod: 2024-03-10 18:10:42
status_changed: 2016-01-12 13:55:00
type: article
metadata_visibility: show
creators_name: Beckmann, Nicholas A.
creators_name: Gotterbarm, Tobias
creators_name: Innmann, Moritz M.
creators_name: Merle, Christian
creators_name: Bruckner, Thomas
creators_name: Kretzer, Jan Philippe
creators_name: Streit, Marcus R.
title: Long-term durability of alumina ceramic heads in THA
subjects: ddc-610
divisions: i-911460
divisions: i-911800
abstract: Background: The optimal type of bearing for hip arthroplasty remains a matter of debate. Ceramic-on-polyethylene (CoP) bearings are frequently used in younger and more active patients to reduce wear and increase biocompatibility compared to Metal-on-Polyethylene (MoP) bearings. However, in comparison to metal heads, the fracture risk of ceramic heads is higher. In addition, ceramic head fractures pose a serious complication which often necessitates major revision surgery. To date, there are no long-term data (>20 years of follow-up) reporting fracture rates of the ceramic femoral heads in CoP bearings. The purpose of this research was to investigate long-term CoP fracture rate.   Methods: We evaluated the clinical and radiographic results of 348 cementless THAs treated with 2nd generation Biolox® Al2O3 Ceramic-on-Polyethylene (CoP) bearings consecutively implanted between January 1985 and December 1989. The mean age at implantation was 57 years. The patients were followed for a minimum of 20 years. At the final 111 had died, and 5 were lost to follow-up. The cumulative incidence of ceramic head fractures in the long-term was estimated using a competing risk analysis.   Results: The cumulative incidence of ceramic head fracture after 22-years was estimated with a competing risk analysis at 0.29% after 22-years (SE = 2.09%; 95% - CI: 0.03-1.5%). The radiographic analysis revealed no impending failures at final follow-up.   Discussion/Conclusion: The fracture rate of second-generation ceramic heads using a CoP articulation remains very low into the third decade after cementless THA.  
date: 2015
publisher: BioMed Central
id_scheme: DOI
ppn_swb: 1653717599
own_urn: urn:nbn:de:bsz:16-heidok-194436
language: eng
bibsort: BECKMANNNILONGTERMDU2015
full_text_status: public
publication: BMC musculoskeletal disorders
volume: 16
number: 249
place_of_pub: London
pagerange: 1-7
issn: 1471-2474
citation:   Beckmann, Nicholas A. ; Gotterbarm, Tobias ; Innmann, Moritz M. ; Merle, Christian ; Bruckner, Thomas ; Kretzer, Jan Philippe ; Streit, Marcus R.  (2015) Long-term durability of alumina ceramic heads in THA.  BMC musculoskeletal disorders, 16 (249).  pp. 1-7.  ISSN 1471-2474     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/19443/1/12891_2015_Article_703.pdf