title: Catastrophic failure of an acetabular total hip arthroplasty component mimicking a posterior dislocation.
abstract: In our case study, we examine a case of catastrophic failure of a total hip arthroplasty acetabular component leading to complete central wear by the ceramic femoral head, requiring revision total hip arthroplasty. Despite subtle clinical findings, initial orthopaedic evaluation and treatment yielded a diagnosis of total hip arthroplasty dislocation. While a much more common phenomenon, the diagnosis led to futile initial attempts at closed reduction. Our index of suspicion must remain high to pick up on subtle, less common diagnoses we will encounter.
authors.affiliation: Department of Orthopaedics, University of Colorado School of Medicine, Aurora, CO, USA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Joyce
authors.affiliation: Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
authors.forename: Jared L
authors.initials: JL
authors.lastname: Harwood
authors.affiliation: Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Glassman
keywords: Acetabular component; Ceramic femoral head; Dislocation; Retrieval analysis; Revision surgery; Total hip replacement