Objective: To investigate the efficacy and safety of laparoscopic transcystic duct micro-incision and primary closure for stone at the junction of the cystic duct and common hepatic duct. 
Methods: The clinical data of 8 patients with stone at the junction of the cystic duct and common hepatic duct treated in the Department of Hepatobiliary and Pancreatic Surgery of the First Affiliated Hospital of Inner Mongolia Medical University from December 2015 to December 2017 were reviewed. All patients underwent laparoscopic cholecystectomy and micro-incision via cystic duct with primary closure, and some of them were assisted by choledochoscopic operation. The operative time, intraoperative blood loss, time to postoperative gastrointestinal functional recovery, time to drainage tube removal, length of postoperative hospital stay and incidence of complications were analyzed. The patients were followed up for 3 to 24 months after surgery.
Results: Laparoscopic operations were successfully performed in all the 8 patients, without any open conversion. The operative time was (125.5±24.2) min, time to postoperative gastrointestinal functional recovery was (28.9±8.2) h, time to drainage tube removal was (3.0±1.3) d, and length of postoperative hospital stay was (5.3±1.5) d. No significant intraoperative bleeding was noted, and postoperative biliary fistula occurred in one case, which was cured by conservative treatment. No biliary stricture or residual stone was found during follow-up. 
Conclusion: Laparoscopic transcystic duct micro-incision and primary closure is safe and effective in treatment of stone at the junction of the cystic duct and common hepatic duct, which can also effectively avoid stone residual as well as bile duct exploration and T tube drainage. However, it still needs be verified by studies with large sample size.