An Unusual Central Dislocation of a Total Hip Arthroplasty Due to Severe Wear of a Ceramic on Cross-linked Polyethylene Bearing Coupling - A Case Report

Efstratios Athanaselis; George Komnos; Theofilos Karachalios

doi:10.13107/jocr.2250-0685.1256

An Unusual Central Dislocation of a Total Hip Arthroplasty Due to Severe Wear of a Ceramic on Cross-linked Polyethylene Bearing Coupling - A Case Report

J Orthop Case Rep. 2018 Nov-Dec;8(6):54-57. doi: 10.13107/jocr.2250-0685.1256.

Authors

Efstratios Athanaselis¹, George Komnos¹, Theofilos Karachalios²

Affiliations

¹ Department of Orthopaedics, University General Hospital of Larissa, Larissa, Greece.
² Department of Orthopaedics, School of Health Sciences, University of Thessaly, Greece.

Abstract

Introduction: Common causes of revision total hip arthroplasty (THA) are component wear, implant loosening, dislocation, and infection.

Case report: An 84-year-old female patient is presented with an unusual pattern of hip dislocation due to structural failure of the cup construct and excessive component wear.

Conclusion: Component wear of THA can drive to catastrophic failure of the implants and significant soft tissue metallosis. Early diagnosis allows interventions even in those hips that are asymptomatic. In the case of a THA dislocation, a thorough imaging control is necessary to reveal structural failure and avoid repetitive and aggressive manipulations for reduction.

Keywords: Total hip arthroplasty; implant failure; polyethylene wear.

Publication types

Case Reports