Efficacy of a modified needle grasper for single-port laparoscopic hernia repair in children: a propensity score-matched analysis.

Abstract

The advantage of using the single-port technique over the conventional two-port approach is uncertain. This study aimed to evaluate the outcomes of a single-port laparoscopic percutaneous extraperitoneal closure (SLPEC) using a modified needle grasper in children and compare the results to those of two-port laparoscopic percutaneous extraperitoneal closure (TLPEC). A retrospective cohort analysis of SLPEC and TLPEC surgery from February 2016 to June 2021 was conducted at our institution. Pediatric patients underwent SLPEC using the modified needle grasper to complete the high ligation of the hernia sac, while operations in the conventional two-port group only used regular laparoscopic instruments. A 1:1 propensity score matching (PSM) analysis was used to reduce selection bias. Of 1320 patients, 1169 were included in the single-port/two-port crude evaluation, with 930 in the PSM cohort (465 patients/arm). Among 1:1 matched patients, the operation time for single-port patients vs. two-port patients were 11.28 ± 3.98 vs. 15.47 ± 4.54min for unilateral repair and 16.86 ± 4.59 vs. 20.40 ± 4.29min for bilateral repair (p < .05). Cosmetic results did not differ between the SLPEC and TLPEC groups (0% vs. 0.7%, p = 0.249). The recurrence rates were comparable between the two groups (0.6% vs. 1.1%, p = 0.725). Moreover, the differences in surgical site infection (SSI), testicular atrophy, open conversion and postoperative hydrocele occurrence were insignificant between the two groups. In this cohort study, the modified needle grasper is a safe and feasible instrument for SLPEC, and SLPEC using the needle grasper has a shorter operation time than TLPEC.