Split gallstones during laparoscopic cholecystectomy are a well known issue when the gallbladder containing the calculus is accidentally perforated during the procedure. An Australian group reviewed eight studies with over 18,000 performed laparoscopic cholecystectomies that showed and found an incidence of perforation of the gallbladder of 18.3%. Whether un-retrieved gallstones cause damage has been studied and remains somewhat controversial, since some authors found an increased risk of intra-abdominal adhesions and abscess formation, others describe no consequences unless the stones are crushed or left behind while preforming surgery for acutely inflamed gallbladder.