2013 8th International Congress of the Chinese Orthopaedic Association : Single-Dose Intra-Articular Morphine After Arthroscopic Knee Surgery: A Meta-Analysis of Randomized of Placebo-Controlled Studies

Data from 26 randomized controlled trials was pooled to evaluate the efficacy and safety of a single dose of intra-articular morphine after arthroscopic knee surgery. The evidence presented in this study demonstrated that morphine after arthroscopic knee surgery resulted in reduced pain, reduced need for supplementary analgesics, and lengthened time before first request for supplementary analgesic. Side effects were comparable between the morphine and control groups.