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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_31 | Pages 20 - 20
1 Aug 2013
Smith E Maru M Siegmeth A
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Hip and knee arthroplasties are very common operations in the UK with over 70000 hip and over 80000 knee arthroplasties taking place in England and Wales in 2011. Fortunately mortality following these operations is rare. However it remains important to understand the incidence and causes of death, in order to manage risk where possible and to inform the consent process.

This study aimed to evaluate the incidence and causes of death within 30 days after undergoing hip or knee arthroplasty in our unit and to highlight possible risk factors.

We looked at 30 day mortality in all patients undergoing hip or knee arthroplasty in our institution between 2005 and 2011. Data on post-operative deaths was derived from the Scottish Arthroplasty Project and correlated with procedural and demographic data from our hospital Patient Administration System (PAS). The notes of all patients who had died within a period of 30 days post-operatively were reviewed to collect data on co-morbid conditions, pre-operative investigations, post-operative thromboprophylaxis and cause of death. All primary and revision knee and hip arthroplasties including bilateral procedures were included. Arthroplasty for trauma was excluded.

A total of 12,243 patients underwent hip or knee arthroplasty within the study period. 59% were female and the mean age was 68 (range 21–91). During this time period the standard protocol was to use aspirin for thromboprophylaxis. Eleven patients died following surgery giving a mortality rate of 0.09%. The most common cause of death was myocardial infarction (7/11 patients).

Our finding of a mortality rate of 0.09% is similar or lower to those found in previous studies. To our knowledge this is the first series of this size looking at mortality from hip and knee arthroplasty within a single centre in the UK.