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J Arthroplasty. 2012 Sep;27(8):1507-12. doi: 10.1016/j.arth.2011.12.010. Epub 2012 Feb 15.

Patient factors predict periprosthetic fractures after revision total hip arthroplasty.

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  • 1Medicine Service and Center for Surgical Medical Acute care Research and Transitions (C-SMART), Birmingham VA Medical Center, Birmingham, AL, USA.

Abstract

We assessed important patient risk factors for postoperative periprosthetic fractures after revision total hip arthroplasty (THA) using prospectively collected Institutional Joint Registry data. We used univariate and multivariable-adjusted Cox regression analyses. There were 330 postoperative periprosthetic fractures after 6281 revision THAs. In multivariable-adjusted analyses, hazard ratio (95% confidence interval) of periprosthetic fracture was higher for women (1.66 [1.32-2.080], P < .001), a higher Deyo-Charlson comorbidity index of 2 (1.46 [1.03-2.07]) and index of 3+ (2.01 [1.48-2.73]; overall, P < .001), and operative diagnosis, especially previous nonunion (5.76 [2.55-13.02]; overall, P < .001). Hazard ratio was lower in patients 61 to 70 years old (0.64 [0.49-0.84]) and 71 to 80 years old (0.57 [0.43-0.76]) compared with those younger than 60 years (overall, P < .0001). Our study identified important modifiable and unmodifiable risk factors for fractures after revision THA.

Published by Elsevier Inc.

PMID:
22342128
[PubMed - indexed for MEDLINE]
PMCID:
PMC3360118
Free PMC Article
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