Two studies (n=55 patients) were included in the review. Baseline characteristics were comparable in one study. Outcome assessors were blinded in one study. Allocation concealment, duration of follow-up, intention-to-treat analysis and sample sizes were inadequate in both studies.
There was no statistically significant difference in visual analogue scale pain scores between tourniquet and non-tourniquet surgeries (MD 8.72, 95% CI -23.06 to 5.63; n=39 patients, two studies).
Present pain intensity scores were significantly lower in the non-tourniquet surgery groups during the first two postoperative days (MD 1.30, 95% CI 0.34 to 2.26; n=32 patients, one study).
Mixed results were reported for the effects of tourniquet and non-tourniquet surgeries on operative duration.
The surgeons’ perception of operative difficulty was significantly lower in tourniquet surgeries (p<0.01, one study).