Related Experiment Video
Updated: May 7, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
Published on: March 24, 2023
Does single-port laparoscopic surgery reduce postoperative pain in women with benign gynecologic disease?
Jeong Min Eom1, Joong Sub Choi, Won Joon Choi
11 Department of Obstetrics and Gynecology, National Medical Center , Seoul, Republic of Korea.
Background:
Reduced postoperative pain, one of the potential benefits of single-port laparoscopic surgery (SP-LS), has clinically significant importance. The objectives of this study are to compare postoperative pain between SP-LS and conventional laparoscopic surgery (conventional-LS) and to evaluate the difference in postoperative pain between the SP-LS group and the conventional-LS group based on whether a hysterectomy was performed.
Subjects And Methods:
We performed a prospective case-control study among women who underwent SP-LS (n=116) and conventional-LS (n=283) for benign gynecologic disease. We evaluated postoperative pain with a visual analog scale for pain score and the requirement for additional analgesics at 2, 4, 6, 12, 24, 48, and 72 hours after surgery.
Results:
The pain score was significantly lower in the SP-LS group compared with the conventional-LS group only at 2 hours after surgery (5.70 ± 2.33 compared with 6.38 ± 2.13, P=.005). However, at all assessment times (2, 4, 6, 12, 24, 48, and 72 hours) after surgery including a hysterectomy (n=188) and all assessment times except 2 hours after surgery that did not include a hysterectomy (n=211), there were no differences in pain score when comparing the SP-LS or conventional-LS groups.
Conclusions:
Single-port laparoscopy had no effect on postoperative pain except in the immediate postoperative state (2 hours following surgery) in women who underwent surgery that did not include a hysterectomy.

