Adverse tissue reaction to corrosion at the neck-stem junction after modular primary total hip arthroplasty.

Details

Serval ID
serval:BIB_FEED1154FFDC
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Adverse tissue reaction to corrosion at the neck-stem junction after modular primary total hip arthroplasty.
Journal
Orthopaedics and Traumatology, Surgery and Research
Author(s)
Gkagkalis G., Mettraux P., Omoumi P., Mischler S., Rüdiger H.A.
ISSN
1877-0568 (Electronic)
ISSN-L
1877-0568
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
101
Number
1
Pages
123-126
Language
english
Notes
Publication types: Journal Article
Abstract
Complications related to the neck-stem junction of modular stems used for total hip arthroplasty (THA) are generating increasing concern. A 74-year-old male had increasing pain and a cutaneous reaction around the scar 1 year after THA with a modular neck-stem. Imaging revealed osteolysis of the calcar and a pseudo-tumour adjacent to the neck-stem junction. Serum cobalt levels were elevated. Revision surgery to exchange the stem and liner and to resect the pseudo-tumour was performed. Analysis of the stem by scanning electron microscopy and by energy dispersive X-ray and white light interferometry showed fretting corrosion at the neck-stem junction contrasting with minimal changes at the head-neck junction. Thus, despite dry assembly of the neck and stem on the back table at primary THA, full neck-stem contact was not achieved, and the resulting micromotion at the interface led to fretting corrosion. This case highlights the mechanism of fretting corrosion at the neck-stem interface responsible for adverse local tissue reactions. Clinical and radiological follow-up is mandatory in patients with dual-modular stems.
Pubmed
Web of science
Open Access
Yes
Create date
16/02/2015 10:45
Last modification date
20/08/2019 17:29
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