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Research Finds Number of Knee Replacement Surgeries Performed Has Significant Effect on Readmission Rates

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Statistical analyses of abdominal aortic aneurisms and trans-catheter aortic valve implementations, undertaken by Dr. Foster in England, found correlations between surgeon annual volume and mortality. Follow-up analysis by the Dr Foster team examined how the number of annual knee replacement procedures performed within a trust influences the rate of readmission. The team found that annual volume was a significant variable, influencing readmissions at a 90 per cent confidence level. The results suggest that an increase in the number of knee replacements a provider carries out over a year would decrease the odds of readmissions following surgery.

Dr Foster used data from Hospital Episode Statistics, analysing a total of 521,858 elective primary knee replacements in order to find the effect of provider annual volume on the outcome of 28-day readmissions post-operation. These surgeries all took place between April 2010 and March 2019.

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