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A Review Of Activity Scores In Patients Aged Sixty-Five Or Less Undergoing Total Hip Replacement Versus Hip Resurfacing

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Author(s): Graeme S. Carlile1, Martyn Porter2

Journal: Journal of Orthopaedics
ISSN 0972-978X

Volume: 6;
Issue: 4;
Date: 2009;
Original page

Keywords: Total hip replacement | Total hip resurfacing | Activity | Duke Activity Status Index

ABSTRACT
Choice of implant for patients aged sixty-five years or younger requiring hip arthroplasty is a topic of current debate. Those in favor of resurfacing maintain it offers greater range of motion and hence activity. In this study, we reviewed the Oxford Hip Score’s (OHS) and Duke Activity Score’s of patients that had undergone either total hip replacement (THR) using an Elite Plus Stem, or hip resurfacing using a Birmingham Hip Resurfacing (BHR). The THR cohort comprised 34 implants (4 bilateral), 17 men and 17 women, mean age 56.08 years. The resurfacing cohort comprised 27 implants (3 bilateral), 18 men and 9 women, mean age 50.51 years. The mean difference calculated between pre- and post-op OHS was 25.33 and 22.08 for the THR and resurfacing cohorts respectively. The mean Duke score was 42.3 and 53 for the cohorts respectively.Using the pre-operative and post-operative change in the Oxford Hip Scores, no statistically significant difference was found between the THR and resurfacing cohorts using a two-sided Mann-Whitney U Test (p = 0.2891). There was a statistically difference found between the THR and resurfacing cohorts with regards to activity using post-operative Duke scores, (p = 0.0047).This study has emphasized the use of hip scores. In terms of reducing pain, both prostheses appear equally effective. With regards to activity the resurfacing cohort faired better. Our study suggests at one year post-op, younger patients with a resurfacing have a greater activity level than those with a THR.

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