Document Detail

Polyethylene wear in uncemented acetabular components.
MedLine Citation:
PMID:  8113288     Owner:  NLM     Status:  MEDLINE    
We measured polyethylene wear in 231 porous-coated uncemented acetabular cups. We divided the hips into two groups according to the fixation of the femoral component, by cementing (n = 97) or press-fit (n = 134). Follow-up was from three to five years. The patients in two sub-groups were matched for weight, diagnosis, sex, age and length of follow-up. The linear wear rate of cups articulated with uncemented femoral components (0.22 mm/year) was significantly higher than the wear rate (0.15 mm/year) of cups articulated within cemented femoral components (p < 0.05). These results can be compared with previously reported wear rates of 0.08 mm/year for cemented all-polyethylene cups and 0.11 mm/year for cemented metal-backed cups. The higher wear rates of uncemented arthroplasties could jeopardize the long-term results of this type of hip replacement.
J R Hernandez; E M Keating; P M Faris; J B Meding; M A Ritter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of bone and joint surgery. British volume     Volume:  76     ISSN:  0301-620X     ISO Abbreviation:  J Bone Joint Surg Br     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-03-31     Completed Date:  1994-03-31     Revised Date:  2010-11-10    
Medline Journal Info:
Nlm Unique ID:  0375355     Medline TA:  J Bone Joint Surg Br     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  263-6     Citation Subset:  AIM; IM    
Center for Hip and Knee Surgery, Mooresville, Indiana 46158.
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MeSH Terms
Acetabulum / radiography,  surgery*
Hip Prosthesis*
Prosthesis Design
Reg. No./Substance:
0/Polyethylenes; 7440-32-6/Titanium

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

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