One-stage versus two-stage bilateral unicompartmental knee replacement: a comparison of immediate post-operative complications

Chan, W C W, Musonda, P, Cooper, A S, Glasgow, M M S, Donell, ST and Walton, N P (2009) One-stage versus two-stage bilateral unicompartmental knee replacement: a comparison of immediate post-operative complications. Journal of Bone and Joint Surgery - British Volume, 91 (10). pp. 1305-1309. ISSN 0301-620X

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Abstract

We retrospectively studied the major complications occurring after one- and two-stage bilateral unicompartmental knee replacements (UKR). Between 1999 and 2008, 911 patients underwent 1150 UKRs through a minimally invasive approach in our unit. Of these, 159 patients (318 UKRs) had one-stage and 80 patients (160 UKRs) had two-stage bilateral UKRs. The bilateral UKR groups were comparable in age and American Society of Anaesthesiology grade, but more women were in the two-stage group (p = 0.019). Mechanical thromboprophylaxis was used in all cases. Major complications were recorded as death, pulmonary embolus, proximal deep-vein thrombosis and adverse cardiac events within 30 days of surgery. No statistical differences between the groups were found regarding the operating surgeon, the tourniquet time or minor complications except for distal deep-vein thrombosis. The anaesthetic times were longer for the two-stage group (p = 0.0001). Major complications were seen in 13 patients (8.2%) with one-stage operations but none were encountered in the two-stage group (p = 0.005). Distal deep-vein thrombosis was more frequent in the two-stage group (p = 0.036). Because of the significantly higher risk of major complications associated with one-stage bilateral UKR we advocate caution before undertaking such a procedure.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Related URLs:
Depositing User: Rhiannon Harvey
Date Deposited: 19 Apr 2011 12:21
Last Modified: 25 Jul 2018 04:38
URI: https://ueaeprints.uea.ac.uk/id/eprint/29609
DOI: 10.1302/0301-620X.91B10.22612

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