Article

Health state utility in patients with osteoarthritis of the hip and total hip arthroplasty.

Department of Orthopaedic Surgery, University of California, San Francisco, California 94143-0728, USA.
The Journal of arthroplasty (impact factor: 1.79). 05/2011; 26(6 Suppl):129-132.e1-2. DOI:10.1016/j.arth.2011.03.033
Source: PubMed

ABSTRACT Understanding patients' perceived health status, as measured by health state utility, is important when evaluating the societal impact of hip osteoarthritis (OA) and total hip arthroplasty (THA). The purpose of this study was to measure health state utility in patients with hip OA and THA. A total of 231 patients from 2 institutions were enrolled into 1 of 6 cohorts: chronic hip OA, successful and failed primary THA, successful and failed revision THA, and infected THA. Average health state utilities were calculated using the time-trade-off method. Health state utilities were highest for primary THA (0.96) and lowest for infected THA (0.46). Our data demonstrate that THA results in substantial improvement in perceived health status in patients with chronic hip OA. However, health state utility is significantly worse after revision THA than primary THA, and failed primary or revision THA results in substantially reduced health state utility, similar to or worse than chronic OA.

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Keywords

2 institutions
 
6 cohorts
 
Average health state utilities
 
chronic hip OA
 
chronic OA
 
Health state utilities
 
health state utility
 
health status
 
hip OA
 
hip osteoarthritis
 
measure health state utility
 
patients
 
primary THA
 
societal impact
 
substantial improvement
 
THA
 
THA results
 
time-trade-off method
 
total hip arthroplasty
 
Understanding patients'