• Raymond Y Hsu, Yoojin Lee, Roman Hayda, Christopher W DiGiovanni, Vincent Mor, and Jason T Bariteau.
• Department of Orthopaedic Surgery, Brown University, Suite 200, 2 Dudley Street, Providence, RI 02903. E-mail address for R.Y. Hsu: Raymond_Hsu@brown.edu.
• J Bone Joint Surg Am. 2015 Nov 4; 97 (21): 1748-55.

BackgroundThe purpose of this study was to examine the incidence of adverse events in elderly patients who required inpatient admission after sustaining an ankle fracture and to consider these data in relation to geriatric hip fracture and other geriatric patient admissions.MethodsA retrospective cohort study of patients admitted with an ankle fracture, a hip fracture, or any other diagnosis was performed with the Medicare Part A database for 2008. The primary outcome measure was the one-year mortality rate, examined with multivariate analysis factoring for both patient age and preexisting comorbidity. Secondary outcome measures analyzed additional morbidity as reflected by length of stay, discharge disposition, readmissions, and medical complications.ResultsThere were 19,648 patients with ankle fractures, 193,980 patients with hip fractures, and 5,801,831 patients with other admitting diagnoses. Significant differences (p < 0.001) were noted in both age and comorbidity status between the group with ankle fractures and the group with hip fractures. The one-year mortality after admission was 11.9% for patients with ankle fracture, 28.2% for patients with hip fracture, and 21.5% for patients with any other admission. Upon using multivariate analysis to account for both age and comorbidity, the hazard ratio for one-year mortality associated with fracture was 1.088 for patients with hip fracture and 0.557 for patients with ankle fracture.ConclusionsEven after selecting for admitted patients and accounting for both age and comorbidity, geriatric patients with ankle fractures were found to have a lower one-year morbidity compared with geriatric patients who had sustained a hip fracture or alternative admitting diagnoses. Geriatric patients with ankle fractures are likely healthier and more active in ways that are not captured by simply accounting for age and comorbidity. These findings may support more aggressive definitive management of such injuries in this population.Level Of EvidencePrognostic Level III. See Instructions for Authors for a complete description of levels of evidence.Copyright © 2015 by The Journal of Bone and Joint Surgery, Incorporated.

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