ObjectiveTo study the clinical effectiveness of a modified laparoscopic high ligation in treatment of inguinal hernial sac in infants.MethodsThe high ligation of hernial sac was conducted using a modified method: the laparoscopic suture of hernia sac was performed with No.4 thread in two semi-circles, facilitated by a No.8 syringe needle holding outside of the body. Two thread ends were knotted outside by supporting trocar and then put back into the abdomen. The thread end was tightened and knotted subcutaneously at the groin. A total of 183 infants received the modified ligation. The average operation time, postoperative hospitalization stay, and the rates of postoperative reoccurrence and complication were observed and the operative efficacy was evaluated.ResultsThe modified laparoscopic high ligation was successfully conducted in all the 183 infants (142 males and 41 females, 278 sides in total) without transitional opening. Unilateral operation time lasted from 6.8-15.2 min (with a mean of \[13.1±1.2\] min). Bilateral operation time lasted from 22.7-33.3 min (with a mean of \[28.4±4.7\] min). Postoperative hospitalization stay varied from 1 day to 3 days (with a mean of \[2.3±0.6\] days). The postoperative reoccurrence rate was 0.7%. Delitescence hernia was identified in 48 cases (35.2%) and was treated by high ligation.ConclusionOur modified laparoscopic high ligation for treatment of inguinal hernia sac is effective, easy-to-perform and easy-to-learn, making it worth popularizing in clinic.