• K A Eggers, B J Jenkins, and I Power.
• Department of Anaesthetics and Intensive Care Medicine, University of Wales College of Medicine, Cardiff, UK.
• Br J Anaesth. 1999 Dec 1;83(6):876-81.

AbstractWe have evaluated the effect of oral and i.v. tenoxicam on postoperative pain after unilateral total knee replacement in a double-blind, randomized, controlled study. Tenoxicam was administered to two groups of patients, either before (40 mg orally) or after (40 mg i.v.) surgery, then at 24 h after surgery (40 mg i.v.) and at the end of each day for 8 days (20 mg orally). A third group were given placebo at all times. All patients had access to PCA morphine for the first 48 h and then co-dydramol tablets for the duration of the study. We studied 101 patients, mean age 67 yr. There was no significant reduction in the requirement for PCA morphine for the duration of the study in either of the treatment groups, or for co-dydramol in the first 2 days, but tenoxicam significantly reduced the need for co-dydramol over the remaining 7 days. There were no significant differences in mobility between groups. There was a high incidence of adverse events reported, with a similar number in each of the three groups.

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