RESEARCH ARTICLE
Lower Dislocation Rate Following Total Hip Arthroplasty via Direct Anterior Approach than via Posterior Approach: Five-Year-Average Follow-Up Results
Sachiyuki Tsukada*, Motohiro Wakui
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 157
Last Page: 162
Publisher ID: TOORTHJ-9-157
DOI: 10.2174/1874325001509010157
Article History:
Received Date: 24/9/2014Revision Received Date: 25/3/2015
Acceptance Date: 20/4/2015
Electronic publication date: 15/5/2015
Collection year: 2015

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
Objective:
The aim of the study was to compare the dislocation rate between total hip arthroplasty (THA) via direct anterior approach (DAA) and via posterior approach (PA).
Methods:
We compared a consecutive series of 139 THAs via DAA with 177 THAs via PA. All study patients received ceramic-on-ceramic bearing surfaces and similar uncemented prostheses. Dislocation-free survival after THA was estimated using the Kaplan–Meier survival method and compared between groups using the log-rank test.
Results:
In the DAA group, none of 139 hips experienced dislocations in five-year-average follow-up. In the PA group, seven hips experienced dislocations among 177 hips (4 %). The dislocation was significantly less in the DAA group compared to the PA group (p = 0.033).
Conclusion:
The dislocation rate of THA via DAA was significantly less than that of THA via PA.