, Volume 471, Issue 4, pp 1349-1355
Date: 27 Nov 2012

Convergence of Outcomes for Hip Fracture Fixation by Nails and Plates

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Topic
Trauma

Abstract

Background

Recent popularity of intramedullary nails over sliding hip screws for treatment of intertrochanteric fractures is concerning given the absence of evidence for clinical superiority for nailing yet the presence of reimbursement differences.

Questions/purposes

We describe the change in outcomes of both procedures across a 15-year span and address the role of reimbursements in the setting of shifting patterns in use.

Methods

A 5% sample of Medicare enrollees from 1993 to 2007 was used. Cohorts were generated along diagnostic and procedure codes. Trends in device use by hospital type, surgical times, and rate of revision surgeries were compared. Historic reimbursements were examined.

Results

Since 2005, intramedullary nail fixation has become the more common treatment in government, nonprofit, and for-profit hospitals. Before 1999, intramedullary nailing required 36 minutes longer to perform than plate-and-screw fixation on average, and had higher revision surgery rates (hazard ratio, 2.48; CI, 1.37–4.48) and 1-year mortality (hazard ratio, 1.42; CI, 1.01–1.99). These differences were not significant since 2000. Reimbursement differences have been consistently in favor of intramedullary nails.

Conclusion

Intramedullary nailing of intertrochanteric fractures has become as safe and efficient as the sliding hip screws, but has been more popular since 2006. Reimbursements were favorable for intramedullary nails in times of low and high use. These results argue against the reimbursement difference as the sole driving force for use of intramedullary nails.

Level of Evidence

Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.

One or more of the authors (FC) has received funding from the Clinical Research Training Program, a research program made possible through a public-private partnership supported jointly by the National Institutes of Health (NIH) and Pfizer Inc (through a grant to the Foundation for NIH from Pfizer Inc). One or more of the authors (FC, ZW, TB) also were supported in part by the Intramural Research Program of the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the NIH.
All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research editors and board members are on file with the publication and can be viewed on request.
Clinical Orthopaedics and Related Research neither advocates nor endorses the use of any treatment, drug, or device. Readers are encouraged to always seek additional information, including FDA-approval status, of any drug or device prior to clinical use.
Each author certifies that his or her institution approved the human protocol for this investigation, that all investigations were conducted in conformity with ethical principles of research, and that informed consent for participation in the study was obtained.
This work was performed at the National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.