• Haeng Rang Ryu, Jandee Lee, Jae-Hyun Park, Sang-Wook Kang, Jong Ju Jeong, Jeong-Youn Hong, and Woong Youn Chung.
• Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea.
• Ann. Surg. Oncol. 2013 Jul 1; 20 (7): 2279-84.

BackgroundThe aim of this study was to compare conventional open thyroidectomy with robotic thyroidectomy in terms of postoperative pain.MethodsWe compared the intensity of postoperative pain experienced by patients who received conventional open thyroidectomy (n = 45) versus those who underwent robotic thyroidectomy (n = 45). During surgery, we carefully controlled the anesthetic conditions. All the patients underwent a total thyroidectomy with ipsilateral central compartment node dissection. Postoperative pain in the 2 groups was compared using a visual analog scale and the amount of rescue analgesic at 30 min, 4 h, 1, 2, 3, and 10 days after surgery.ResultsThe postoperative pain at 30 min and 4 h after surgery were 3.0 ± 0.9 and 2.6 ± 0.9 (p = .066) and 4.9 ± 1.3 and 4.4 ± 1.3 (p = .055) in the conventional open group and the robotic group, respectively. The mean pain scores at 1, 2, 3, and 10 days after surgery were 3.8 ± 1.3 and 3.0 ± 1.3 (p = .001), 2.6 ± 1.2 and 2.0 ± 0.9 (p = .005), 1.7 ± 0.9 and 1.3 ± 0.6 (p = .034), and 0.9 ± 0.7 and 1.2 ± 1.1 (p = .093), respectively. No significant differences were observed between the 2 groups in terms of postoperative rescue analgesic use (1.1 ± 1.1 and 0.8 ± 0.9, p = .264).ConclusionsEven though robotic thyroidectomy using the transaxillary technique requires a more extensive subcutaneous dissection than conventional open thyroidectomy, robotic thyroidectomy does not result in more postoperative pain or use of analgesic when compared with open thyroidectomy.

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