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Published in: BMC Musculoskeletal Disorders 1/2022

Open Access 01-12-2022 | Hip-TEP | Case report

Liner dissociation in a large-diameter ceramic-bearing acetabular component: a report of five cases

Authors: Lazaros Kostretzis, Sagi Martinov, Martin Lavigne, Vincent Massé, Pascal-André Vendittoli

Published in: BMC Musculoskeletal Disorders | Issue 1/2022

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Abstract

Background

Ceramic-on-ceramic (CoC) bearings for total hip arthroplasty (THA) have been offering very favorable results and survivorship since their introduction. In order to increase range of movement (ROM) and decrease dislocation rates, some manufacturers have introduced larger diameter head (LDH) CoC bearings. This has been achieved with the use of preassembled cup designs, in which the ceramic liner is already fitted into the metal backing and implanted as a monoblock component by the surgeon. In this report we present data from a series of 5 patients with ceramic liner dissociation from a monoblock cup.

Case presentation

All cases were overweight men with acetabular components of 56 or 58 mm. After a mean of 5.5 (range, 3.5-6.7) years, all patients reported sudden pain and audible noise when performing activities of daily living. Liner displacement was suspected on plain radiographs and confirmed by Ct-scan. Pneumarthrosis was present in all cases. Taper modular junction wear and corrosion signs were observed in the four revised patients.

Conclusion

Although one of our case is still treated conservatively, implant revision is probably inevitable. Further LDH CoC implant design should take in consideration this potential complication by avoiding bearing diameters over 40mm and/or improving locking mechanism or by providing a real monoblock acetabular implant.
Literature
20.
go back to reference Weber AE, Skendzel JG, Waxman DL, Blaha JD. Symptomatic aseptic hydrogen pneumarthrosis as a sign of crevice corrosion following total hip arthroplasty with a modular neck. JBJS Case Connect. 2013;3(3 Suppl 1):e761–6.PubMed Weber AE, Skendzel JG, Waxman DL, Blaha JD. Symptomatic aseptic hydrogen pneumarthrosis as a sign of crevice corrosion following total hip arthroplasty with a modular neck. JBJS Case Connect. 2013;3(3 Suppl 1):e761–6.PubMed
Metadata
Title
Liner dissociation in a large-diameter ceramic-bearing acetabular component: a report of five cases
Authors
Lazaros Kostretzis
Sagi Martinov
Martin Lavigne
Vincent Massé
Pascal-André Vendittoli
Publication date
01-12-2022
Publisher
BioMed Central
Keywords
Hip-TEP
Hip-TEP
Published in
BMC Musculoskeletal Disorders / Issue 1/2022
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-022-05082-6

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