38 patients in our hospital from December 2021 to February 2022, including 28 males and 10 females; aged 13 to 68 years, average of 41.3 years. Physical examination and pain assessment were performed on the same day, 3 days and 4 weeks after surgery. During the operation, the tilt angle of Trendelenburg and the initial traction force were measured by pulling scale, and the operation time, traction time and the occurrence of complications were measured....