Original Research
Demographics, Outcomes, and Risk Factors for Adverse Events Associated With Primary and Revision Total Hip Arthroplasties in the United States
Am J Orthop. 2010 August;39(8):E72-E77
Author and Disclosure Information
Stavros G. Memtsoudis, MD, PhD, Yan Ma, PhD, Alejandro González Della Valle, MD, Melanie C. Besculides, MPH, DrPH, Licia K. Gaber, BA, Panagiotis Koulouvaris, MD, and Spencer S. Liu, MD
Dr. Memtsoudis is Clinical Associate Professor, Department of Anesthesiology, Dr. Ma is Assistant Professor of Biostatistics, Department of Public Health, and Dr. González Della Valle is Associate Professor, Department of Orthopedics, Hospital for Special Surgery–Weill Medical College of Cornell University, New York, New York.
Dr. Besculides is Senior Public Health Researcher, Division of Public Health, Mathematica Policy Research, Princeton, New Jersey.
Ms. Gaber is Statistical Data Analyst, LKG Consulting, Plainsboro, New Jersey.
Dr. Koulouvaris is Fellow, Department of Orthopedics, and Dr. Liu is Clinical Professor, Department of Anesthesiology, Hospital for Special Surgery–Weill Medical College of Cornell University, New York, New York.
We conducted a study to analyze nationally representative data on patient and health care system characteristics and in-hospital outcomes associated with primary and revision total hip arthroplasties in the United States. Between 1990 and 2004, there were an estimated 2,748,187 hospital discharges after total hip arthroplasty. The risk factors we identified for procedure-related complications and in-hospital mortality included revision procedures, increased age, and male sex. Compared with smaller hospital capacity (number of beds), large hospital capacity was associated with a decreased odds ratio for complications but an increased risk for in-hospital mortality. Additional studies are warranted to determine causal relationships.