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. 2013 Feb;84(1):40-3.
doi: 10.3109/17453674.2013.771298. Epub 2013 Jan 31.

Reduced medium-term mortality following primary total hip and knee arthroplasty with an enhanced recovery program. A study of 4,500 consecutive procedures

Terence Savaridas  1 , Ignacio Serrano-Pedraza, Sameer K Khan, Kate Martin, Ajay Malviya, Mike R Reed
Affiliations

Reduced medium-term mortality following primary total hip and knee arthroplasty with an enhanced recovery program. A study of 4,500 consecutive procedures

Terence Savaridas et al. Acta Orthop. 2013 Feb.

Abstract

Background and purpose: Our unit started to use routine multimodal techniques to enhance recovery for hip and knee arthroplasty in 2008. We have previously reported earlier discharge, a trend toward a reduction in complications, and a statistically significant reduction in mortality up to 90 days after surgery. In this study, we evaluated the same cohort to determine whether survival benefits were maintained at 2 years.

Patients and methods: We prospectively evaluated 4,500 unselected consecutive total hip and knee replacements. The first 3,000 underwent a traditional protocol (TRAD) and the later 1,500 underwent an enhanced recovery protocol (ER). Mortality data were collected from the Office of National Statistics (UK).

Results: There was a difference in death rate at 2 years (TRAD vs. ER: 3.8% vs. 2.7%; p = 0.05). Survival probability up to 3.7 years post surgery was significantly better in patients who underwent an ER protocol.

Interpretation: This large prospective case series of unselected consecutive patients showed a reduction in mortality rate at 2 years following elective lower-limb hip and knee arthroplasty following the introduction of a multimodal enhanced recovery protocol. This survival benefit supports the routine use of an enhanced recovery program for hip and knee arthroplasty.

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Figures

Figure 1.
Figure 1.
Kaplan-Meier (K-M) survival curves for both groups ± 95% Greenwood confidence interval (dotted lines). Note that the two K-M survival curves fall outwith the ± 95% Greenwood confidence intervals. The level of significance is 0.05.
Figure 2.
Figure 2.
Cause of death for patients who died up to 2 years post surgery, reported as a rate per 1,000 procedures.
See this image and copyright information in PMC

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