Table of Contents
Advances in Orthopedic Surgery
Volume 2016 (2016), Article ID 6168923, 5 pages
Clinical Study

Experiences of a Peripheral Unit in Using a Tripolar Constrained Acetabular Component for Recurrent Dislocations following Total Hip Joint Replacements

University Hospital of South Manchester, Southmoor Road, Manchester M23 9LT, UK

Received 16 August 2015; Revised 14 December 2015; Accepted 29 December 2015

Academic Editor: Shyu-Jye Wang

Copyright © 2016 Mohammed S. Arshad et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Primary total hip arthroplasty is a successful procedure, although complications such as dislocation can occur. In certain patient populations if this is recurrent, it can be difficult to manage effectively. We present a retrospective analysis of our experience of using a capture/captive cup over an 8-year period for frail elderly patients who presented with recurrent hip dislocations. Our findings show no redislocations in our cohort and a survival analysis demonstrates just less than half surviving at 2 years after surgery. Furthermore, Harris Hip Scores were generally calculated to be good. A constrained acetabular component provides durable protection against additional dislocations without substantial deleterious effects on component fixation. Such components should be considered especially in a group of patients with comorbidities or those who are fragile, elderly, and low-demand in nature.