Dislocation Following Hip Arthroplasty Through the Posterior Approach - Is There a Safe Zone for Socket Implantation? | QUT ePrints QUT Home Contact Home Browse About Login Dislocation Following Hip Arthroplasty Through the Posterior Approach - Is There a Safe Zone for Socket Implantation? Biau, D, Chew, D, Timperley, A, & Whitehouse, Sarah (2007) Dislocation Following Hip Arthroplasty Through the Posterior Approach - Is There a Safe Zone for Socket Implantation? In 67th Annual Scientific Meeting Australian Orthopaedic Association, 2007-10-07 - 2007-10-12. Description Introduction & Aims: Malorientation of the socket is a factor contributing to instability after arthroplasty but the optimal orientation of the cup in relation to the pelvis has not been unequivocally described. Large radiological studies are few and problems occur with film standardisation, measurement methodology used and alternative definitions of describing acetabular orientation. Method: A cohort of 1578 patients from a single institution is studied where all data on the patients was collected prospectively. Risk factors for patients undergoing surgery are analysed. A case is made to justify the use of the terms "Elevation" and "Twist" to describe angular position in relation to the pelvis since they are uniquely defined and can be applied to describe the alignment of the native socket and cup position. Radiological data was compared between dislocating cases and a series of non-dislocating hips matched 2:1 by operation type, age and diagnosis. Results: The overall dislocation rate for all 1578 cases was 3.29% but the rate varied according to the type of surgery performed. The rate in uncomplicated primary cases was 2.46% whilst it increased to 9.26% for cases undergoing second stage implantation for a two stage procedure for infection. Levene’s test for homogeneity of variance indicates that there is no significant difference in the variability of the dislocating and non-dislocating groups for either elevation (p=0.393) or twist (p=0.661). Conclusions: When surgery is carried out through a posterior approach a "safe zone" for socket orientation to avoid dislocation could not be defined. The cause of dislocation is multifactorial, details such as re-establishing the anatomic centre of rotation, balancing soft tissues and avoidance of impingement around the hip are important considerations. Impact and interest: Search Google Scholar™ Citation counts are sourced monthly from Scopus and Web of Science® citation databases. These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards. Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search. Notify us of incorrect data How to use citation counts More information More statistics... ID Code: 10195 Item Type: Contribution to conference (Abstract) Refereed: No ORCID iD: Whitehouse, Sarah orcid.org/0000-0002-3260-4736 Measurements or Duration: 0 Keywords: Complication, Dislocation, Socket Orientation, Total Hip Replacement Pure ID: 33698405 Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering ?? 1409 ?? Past > Schools > School of Engineering Systems Past > Institutes > Institute of Health and Biomedical Innovation Past > QUT Faculties & Divisions > Science & Engineering Faculty ?? 32 - ?? Copyright Owner: Consult author(s) regarding copyright matters Copyright Statement: This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Deposited On: 17 Oct 2007 00:00 Last Modified: 20 Aug 2021 14:57 Export: EndNote | Dublin Core | BibTeX Repository Staff Only: item control page Home Browse research About CRICOS No. 00213J ABN 83 791 724 622 Accessibility Copyright Disclaimer Privacy Right to Information
