Conclusions：Single-layer eversion choledochojejunostomy is easy to perform, the operative time is short, and is a safe, reliable and rational anastomotic procedure.

胆管空肠一层外手术操作简单易行，手术时间短，且安全可，一种理想的手术方式。

Conclusions Single-layer eversion choledochojejunostomy is easy to perform, the operative time is short, and is a safe, reliable and rational anastomotic procedure.

结论胆管空肠一层外手术操作简单易行，手术时间短，且安全可，一种理想的手术方式。