Xu C, et al. - The perioperative analgesic effect of a buprenorphine transdermal patch was examined in patients who underwent hallux valgus surgery. Researchers noted that during the perioperative period, the buprenorphine transdermal delivery system (BTDS) (a preemptive analgesia regimen) could exert an analgesic effect for patients who had received hallux valgus surgery. This effect appeared valuable for sustaining postoperative physiological and psychological states and promoting functional rehabilitation.