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Comparative Study
. 2012 Jul;94(5):347-50.
doi: 10.1308/003588412X13171221590098.

Closed suction drains, reinfusion drains or no drains in primary total knee replacement?

S Al-Zahid  1 , A P Davies
Affiliations
Comparative Study

Closed suction drains, reinfusion drains or no drains in primary total knee replacement?

S Al-Zahid et al. Ann R Coll Surg Engl. 2012 Jul.

Abstract

Introduction: Controversy still surrounds the use of drains after total knee replacement (TKR). We compared closed suction drains, reinfusion drains and no drains by studying haemoglobin (Hb) levels, blood transfusion requirements and functional knee outcome scores in a single surgeon series.

Methods: A total of 102 consecutive primary TKRs were performed by the senior author between September 2006 and July 2008. All were cemented fixed bearing devices with patellar resurfacing. Of the 102 patients, 30 had closed suction drainage, 33 had an unwashed reinfusion drainage system and 39 had no drains. Data regarding pre and post-operative Hb and units transfused were gathered retrospectively. Pre and post-operative American Knee Society scores (AKSS) and Oxford knee scores (OKS) were recorded prospectively.

Results: The pre-operative Hb levels were comparable among the groups. There was no statistically significant difference in Hb level reduction or autologous transfusion rates among the groups. Pre-operative AKSS and OKS were statistically comparable in each group. There was no statistical difference between the improvement in AKSS knee and function scores in all three groups. There was a slightly smaller improvement in the OKS of the 'no drain' group. There were no complications of drain usage and no deep infections. No patient required manipulation under anaesthesia and range of movement outcomes were the same for each group.

Conclusions: Our study does not support the use of either closed suction drains or reinfusion drains in primary elective TKR.

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Figures

Figure 1
Figure 1
Box plot illustrating no difference in the drop in haemoglobin (Hb) levels between the groups
Figure 2
Figure 2
Box plot illustrating a reduced improvement in Oxford knee scores (OKS) in the ‘no drain’ group compared with the other groups
See this image and copyright information in PMC

References

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