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Clin Orthop Relat Res. 2010 Jan;468(1):45-51. doi: 10.1007/s11999-009-0945-0. Epub 2009 Jun 25.

The epidemiology of revision total knee arthroplasty in the United States.

Author information

1
Department of Orthopaedic Surgery and Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, 500 Parnassus Ave., MU320W, San Francisco, CA 94143-0728, USA. bozick@orthosurg.ucsf.edu

Abstract

Understanding the cause of failure and type of revision total knee arthroplasty (TKA) procedures performed in the United States is essential in guiding research, implant design, and clinical decision making in TKA. We assessed the causes of failure and specific types of revision TKA procedures performed in the United States using newly implemented ICD-9-CM diagnosis and procedure codes related to revision TKA data from the Nationwide Inpatient Sample (NIS) database. Clinical, demographic, and economic data were reviewed and analyzed from 60,355 revision TKA procedures performed in the United States between October 1, 2005 and December 31, 2006. The most common causes of revision TKA were infection (25.2%) and implant loosening (16.1%), and the most common type of revision TKA procedure reported was all component revision (35.2%). Revision TKA procedures were most commonly performed in large, urban, nonteaching hospitals in Medicare patients ages 65 to 74. The average length of hospital stay (LOS) for all revision TKA procedures was 5.1 days, and the average total charges were $49,360. However, average LOS, average charges, and procedure frequencies varied considerably by census region, hospital type, and procedure performed.

LEVEL OF EVIDENCE:

Level II, economic and decision analysis. See Guidelines for Authors for a complete description of levels of evidence.

PMID:
19554385
PMCID:
PMC2795838
DOI:
10.1007/s11999-009-0945-0
[Indexed for MEDLINE]
Free PMC Article

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