The study aimed to evaluate whether the addition of the EmeTerm wristband to conventional antiemetic therapy could enhance prevention of PONV after orthopedic surgeries. This randomized controlled study involving 348 patients undergoing THA or TKA under spinal anesthesia were assigned to receive either (1) standard antiemetics alone (dexamethasone and ondansetron) or (2) antiemetics combined with the EmeTerm bracelet. PONV incidence, severity, and recovery quality were assessed over 24 hours post-surgery.

The combined use of the EmeTerm wristband and antiemetics significantly reduced PONV occurrence and improved overall recovery quality. Specifically: The combination of the EmeTerm wristband and antiemetic medication achieved a significantly higher complete response rate than medication alone (84.0% vs. 68.8%; p = 0.001)(Figure 1). Within the critical first 6 postoperative hours, combined use of the EmeTerm wristband substantially enhanced antiemetic efficacy: Nausea incidence reduced from 24.3% to 6.9%; Vomiting incidence reduced from 15.0% to 2.3%(Figure 2). Level of Evidence is Therapeutic Level l.