Unusual Case of Acetabular Liner Dissociation Following Failure of Ceramic-OnCeramic Bearing Total Hip Arthroplasty: A Case Report

Author Info

Michael Foxall-Smith Richard Donovan Stephen Eastaugh-Waring Mehool Acharya

Corresponding Author

Mehool Acharya
Avon Orthopaedic Centre. North Bristol NHS Trust, Bristol, UK

A B S T R A C T

Modular hip implants can improve construct stability and the rate of volumetric wear in Total Hip Arthroplasty (THA), however, there is still a 0.2-10% risk of dislocation. We report the unusual case of a 54-year-old lady who presented with a dislocated migrated ceramic liner following a twisting injury. She had undergone a ceramic-on-ceramic THA five years earlier. This diagnosis of the dislocated liner was confirmed with computed tomography (CT) scanning. Review of National Joint Registry data showed ceramic-on-ceramic acetabular liner dissociation to be rarer than in those with metal-on-polyethylene (incidence 0.27 vs. 0.46 per 1000 prosthesis years). We suggest the liner may have migrated in retrograde along the iliopsoas. We recommend the use of cross-sectional imaging (CT) to assist in confirming the diagnosis and planning future surgery.

Article Info

Article Type

Case Report

Publication history

Received: Tue 02, Jun 2020
Accepted: Mon 15, Jun 2020
Published: Mon 29, Jun 2020

Copyright

© 2023 Mehool Acharya. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Hosting by Science Repository.
DOI: 10.31487/j.JSCR.2020.03.07