The Evolution of the Trunnion

Implant modularity has recently come under increasing scrutiny due to concerns regarding wear, corrosion and potential adverse reactions to metal debris. This review outlines the evolution and development of the femoral stem trunnion and relates this to contemporary issues now encountered. Despite d...

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Bibliographic Details
Published in:HIP International 2015-01, Vol.25 (1), p.2-6
Main Authors: Rajpura, Asim, Board, Timothy N
Format: Article
Language:English
Subjects:
Arthroplasty, Replacement, Hip - methods
Hip Dislocation - prevention & control
Hip Prosthesis
Humans
Osteoarthritis, Hip - surgery
Postoperative Complications - prevention & control
Prosthesis Design
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Summary:Implant modularity has recently come under increasing scrutiny due to concerns regarding wear, corrosion and potential adverse reactions to metal debris. This review outlines the evolution and development of the femoral stem trunnion and relates this to contemporary issues now encountered. Despite different manufacturers producing what appear to be similar trunnion designs, there is still a lack of standardisation, with small but significant design variations. Wear and corrosion is certainly not a new phenomenon, but recent changes in design and the use of larger metal head sizes has potentially made the problem more prevalent. These issues along with steps to avoid these problems are discussed.
ISSN:1120-7000
1724-6067
DOI:10.5301/hipint.5000213