A Missed Diagnosis of Intraprosthetic Dislocation in a Dual-Mobility Bearing Following Closed Reduction.
Largo Medical Center
dual mobility, dual-mobility bearings, hip dislocations, intraprosthetic dislocation, total hip athroplasty
Medicine and Health Sciences | Musculoskeletal Diseases | Orthopedics | Surgery
Dual-mobility bearings have been found to reduce the rate of dislocation following both primary and revision total hip arthroplasty. Their unique design involves two articulating surfaces which increases construct stability but also leaves them susceptible to a unique complication known as intraprosthetic dislocation (IPD). We report the case of a 33-year-old female who sustained an IPD following closed reduction. Following a missed radiographic diagnosis, the patient experienced pain and mechanical symptoms secondary to her implant failure. Surgical removal of the dislodged liner with component revision was required. This case highlights several crucial steps in the management of patients with dislocated total hip arthroplasties including implant identification and careful review of postreduction radiographs. We also discuss several strategies to properly diagnose, manage, and avoid IPD.
Publisher or Conference
Ballard T, Corbett A, Murphy JD, Judson W, Harker JN. A Missed Diagnosis of Intraprosthetic Dislocation in a Dual-Mobility Bearing Following Closed Reduction. Cureus. 2023;15(11):e49361. doi:10.7759/cureus.49361