Repository of Research and Investigative Information

Repository of Research and Investigative Information

Baqiyatallah University of Medical Sciences

Fracture of the alumina-bearing couple delta ceramic liner

(2012) Fracture of the alumina-bearing couple delta ceramic liner. Orthopedics. e91-3. ISSN 0147-7447

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/22229622

Abstract

The fracture rate of third-generation ceramic liners is greatly reduced compared with first- and second-generation liners because of improvements in the design and manufacturing process. Fractures of the alumina-bearing couple are rare for the same reason.This article describes a case of a fracture of an alumina-bearing couple delta ceramic liner without trauma history that was treated with ceramic-on-polyethylene revision total hip arthroplasty. A 57-year-old man was admitted to the hip ward because of an alumina-bearing couple delta ceramic liner fracture. He underwent hip replacement by anterior approach 18 months previously in the same center because of left hip primary osteoarthritis. He received a 54x36-mm modular press-fit cup ceramic alumina-bearing couple delta insert. Probable causes of such fractures are manufacture production failure and edge loading based on cup inclination, but in our patient, inacceptable range of motion, failure of the locking mechanism during implantation insertion, or cracking were possible causes of fracture.Although the fracture rate of third-generation alumina-bearing couples is low, we believe that it may not be possible to eliminate the actual risk of alumina head fracture. Patients should be informed about the potential for this complication before receiving an alumina-bearing couple.

Item Type: Article
Keywords: Aluminum Oxide Arthroplasty, Replacement, Hip/*adverse effects/*instrumentation Ceramics Device Removal Equipment Failure Analysis Female Hip Prosthesis/*adverse effects Humans Joint Instability/*etiology/*surgery Middle Aged Prosthesis Design *Prosthesis Failure Treatment Outcome
Divisions:
Page Range: e91-3
Journal or Publication Title: Orthopedics
Journal Index: Pubmed
Volume: 35
Number: 1
Identification Number: https://doi.org/10.3928/01477447-20111122-33
ISSN: 0147-7447
Depositing User: مهندس مهدی شریفی
URI: http://eprints.bmsu.ac.ir/id/eprint/2086

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