Femoral neck fractures in New York State. Is the rate of THA increasing, and do race or payer influence decision making?

Jason P Hochfelder, Omar N Khatib, Sergio A Glait, James D Slover
Journal of Orthopaedic Trauma 2014, 28 (7): 422-6

OBJECTIVES: To evaluate the treatment trends for femoral neck fractures in New York State over the past 10 years.

METHODS: The Statewide Planning and Research Cooperative System database from the New York State Department of Health was used to identify patients who sustained femoral neck fractures from 2000 to 2010. Multivariate logistic regression analysis was performed with the dependent variable being total hip arthroplasty (THA) versus hemiarthroplasty (HA) and independent variables being age, sex, race, insurance type, and comorbidity index.

RESULTS: From 2000 to 2010, there were 44,425 patients admitted to New York State hospitals with femoral neck fractures, of which 86% occurred in patients older than 70. Of the total, 73.5% were treated with HA, 19.5% with internal fixation (IF), and 7% with THA. The overall rate of treatment with THA increased slightly, but this was not statistically significant (P = 0.11), and it only increased for patients younger than 70 years. The rate of HA increased significantly from 69.9% to 75.4% (P < 0.001), and the rate of IF showed a statistically significant reduction from 21.9% to 16.8% (P < 0.001). Results of the multivariate logistic regression analysis showed that for every 10-year increase in age, there was a 31% reduction in treatment with THA compared with HA. White patients were just as likely to receive THA as non-whites, and patients with private insurance were 41% more likely to receive THA than self-pay and federally insured patients.

CONCLUSIONS: The rate that THA is being performed as treatment of femoral neck fractures is increasing for patients younger than 70 years but decreasing for patients older than 80 years. The rate of IF is decreasing. Patients with private insurance were more likely to receive THA than patients with federal insurance.

LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.

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