Does intraoperative magnesium lessen pain after knee replacement surgery?

Editor —I write in response to the paper by Shin and colleagues1 regarding the use of magnesium sulphate as an analgesic in staged knee arthroplasty. Whilst the study appears well-planned and presents some convincing results, my colleagues and I were left with a few questions.
Source: British Journal of Anaesthesia - Category: Anesthesiology Source Type: research