Methods included: LC + transcystic CBD exploration: 31 cases, successful rate: 93.5%, conversions: 6.5%, stone clearance: 100%, morbidity: 0%; LC + choledochotomy (T tube drainage in 93 cases, CBD primary closure in 1 case): successful rate: 97.9%, conversions: 2.1%, intraoperative stone clearance: 75%, morbidity: 3.3%, stone clearnce after CBD exploration via T tube tract: 100%.