Evolution of bias and sample size in postoperative pain management trials after hip and knee arthroplasty.

Acta anaesthesiologica Scandinavica（2018）

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摘要

Risk of bias for RCTs regarding postoperative pain management after THA and TKA has decreased from 2007 to 2016, mainly due to better randomization and allocation concealment. Deficiencies remain. Thus, reporting according to validated guidelines is essential. Sample sizes did not change significantly.

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关键词

postoperative pain management trials,postoperative pain management,postoperative pain,sample size,knee arthroplasty

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