The Journal of Bone and Joint Surgery (American). 2008;90:1899-1905.
doi:10.2106/JBJS.G.00883
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Outcome After Surgery for the Treatment of Hip Fracture in the Extremely Elderly

G. Holt, MBChB, MRCS1, R. Smith, PhD2, K. Duncan, MSc, BA2, J.D. Hutchison, PhD, FRCSEd, FRCSE3 and A. Gregori, MBChB, FRCS(Tr&Orth)1

1 Department of Orthopaedic and Trauma Surgery, Hairmyres Hospital, Eaglesham Road, East Kilbride, Glasgow G75 8RG, Scotland, United Kingdom. E-mail address for G. Holt: graemeholt{at}btinternet.com
2 Scottish Hip Fracture Audit Healthcare Information Group, Information Services Division, NHS National Services Scotland, Gyle Square, 1 South Gyle Crescent, Edinburgh EH12 9EB, Scotland, United Kingdom
3 Department of Surgery and Orthopaedics, University of Aberdeen Medical School, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, Scotland, United Kingdom
Investigation performed at the Scottish Hip Fracture Audit Healthcare Information Group, Information Services Division, NHS National Services Scotland, Edinburgh, and the Department of Orthopaedic and Trauma Surgery, Hairmyres Hospital, East Kilbride, Scotland, United Kingdom

Disclosure: In support of their research for or preparation of this work, one or more of the authors received, in any one year, outside funding or grants of less than $10,000 from B. Braun Aesculap. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. A commercial entity (B. Braun Aesculap) paid or directed in any one year, or agreed to pay or direct, benefits of less than $10,000 to a research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which one or more of the authors, or a member of his or her immediate family, is affiliated or associated.

Background: As a consequence of changes in population demographics, the extremely elderly represent one of the fastest growing groups in Western society. Previous studies have associated advanced age with increased mortality after hip fracture; however, this finding has not been consistent.

Methods: The Scottish Hip Fracture Audit is a prospective, national, multicenter study that collects data on patients over the age of fifty years who are admitted to the hospital with a hip fracture. For the present study, we used data collected from twenty-two acute-care orthopaedic units between January 1998 and December 2005. The extremely elderly cohort consisted of 919 individuals with an age of ninety-five years or more. Case-mix variables and outcomes were compared with those for a modal control group of 15,461 individuals who were seventy-five to eighty-nine years of age. Outcome measures included thirty and 120-day mortality rates, the length of the hospital stay, the place of residence, and mobility. A multivariable logistic regression model was used to compare outcomes between groups while controlling for significant case-mix variables.

Results: The extremely elderly presented with poorer indicators of health status as demonstrated by higher American Society of Anesthesiologists scores. In addition, this group was less likely to be independently mobile and more likely to be in institutional care at the time of the fracture (p < 0.001). Mortality at thirty and 120 days was higher in the extremely elderly even after adjusting for case-mix variables. The extremely elderly also were less likely to return home or to return to previous levels of mobility.

Conclusions: Although the extremely elderly exhibited a higher prevalence of prefracture indicators of poor outcome, statistical control for these case-mix variables showed further age-related deterioration in survival and outcomes after surgery for the treatment of a hip fracture.

Level of Evidence: Prognostic Level I. See Instructions to Authors for a complete description of levels of evidence.


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