A late dissociation of the ceramic component of a sandwich liner cup in a total hip arthroplasty—Case report and review of the literatureReport as inadecuate




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We present a case of a 71-year-old woman with unexplainedinstability of her total hip arthroplasty 12 years after implantation due toloosening of the ceramic component of a sandwich ceramic in polyethyleneliner. She experienced in total 2 dislocations in 6 months. These eventsoccurred without fracture of the ceramic liner. Sandwich ceramic liners were introducedwith the idea of combining the benefits of ceramic and polyethylene bearings intotal hip arthroplasty in order to reduce wear and to allow a ceramic onceramic bearing to be used in a cup designed for polyethylene inserts only. Althoughsome reports showed promising early results, case reports and later onretrospective analysis showed high fracture rates of the ceramic linercomponent. We believe that loosening of the ceramic component may precedefracture of the liner and that a ceramic on ceramic configuration ispreferable.

KEYWORDS

Total Hip Arthroplasty; Sandwich Cup; Complication; Hip Instability; Cup Revision

Cite this paper

Roo, P. , Steenbrugge, F. and Raaijmaakers, M. 2013 A late dissociation of the ceramic component of a sandwich liner cup in a total hip arthroplasty

—Case report and review of the literature. Case Reports in Clinical Medicine, 2, 138-140. doi: 10.4236-crcm.2013.22037.





Author: Pieter-Jan De Roo, Franky Steenbrugge, Martijn Raaijmaakers

Source: http://www.scirp.org/



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