Trends in bilateral total knee arthroplasties: 153,259 discharges between 1990 and 2004.

Abstract:

UNLABELLED:Information regarding national trends in bilateral TKAs is needed for a rational allocation of resources, policy making, and research. Therefore, we analyzed data from the National Hospital Discharge Survey to elucidate temporal changes in the demographics, comorbidity profiles, hospital stay, and in-hospital complications of patients undergoing bilateral TKAs in the United States. We created three 5-year periods: 1990-1994, 1995-1999, 2000-2004. Procedure, healthcare system, and patient-related variables were analyzed for an estimated 153,259 discharges. Use of bilateral TKAs more than doubled for the entire civilian population and almost tripled among the female population, with the steepest increase seen during the last two study periods. A decline of nearly 50% in the use of bilateral TKAs in patients 85 years and older was seen between the second and third study periods. The prevalence of coronary artery disease and pulmonary disease increased from the first to the second study periods but decreased from the second to the third. The changes in the variables studied may reflect a recently acquired reluctance to perform bilateral TKAs in elderly patients with cardiopulmonary comorbidities. Additional studies are necessary to identify other causal relationships and define the impact of these changes on various aspects of the healthcare system. LEVEL OF EVIDENCE:Level II, prognostic study. See the Guidelines for Authors for a complete description of levels of evidence.

journal_name

Clin Orthop Relat Res

authors

Memtsoudis SG,Besculides MC,Reid S,Gaber-Baylis LK,González Della Valle A

doi

10.1007/s11999-008-0610-z

subject

Has Abstract

pub_date

2009-06-01 00:00:00

pages

1568-76

issue

6

eissn

0009-921X

issn

1528-1132

journal_volume

467

pub_type

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