To investigate the risk factors of chronic pain after laparoscopic preperitoneal hernia repair, and to establish a nomogram model for predicting chronic pain after laparoscopic preperitoneal hernia repair.

Selected 179 patients who were admitted to our hospital between February 2015 and December 2020 for diagnosis and treatment underwent laparoscopic transabdominal preperitoneal hernia repair as the research object, analyzed the clinical data of the selected patients, and selected them according to whether chronic pain occurred. Patients were divided into chronic pain group (n=30) and normal group (n=149). Logistic regression analysis was used to screen the risk factors of chronic pain after laparoscopic transabdominal preperitoneal hernia repair, and establish laparoscopic transabdominal peritoneum a nomogram model of the risk of chronic pain after anterior hernia repair.

Among the selected 149 patients, 30 (16.76%) patients had chronic pain. Logistic regression analysis showed that age<40, mechanical fixation patch, postoperative wound infection, reoperation and operation time ≥100 min were independent risk factors for chronic pain after laparoscopic transabdominal preperitoneal hernia repair (P<0.05). Based on the independent risk factors of chronic pain after laparoscopic transabdominal preperitoneal hernia repair, such as age, mechanical fixation patch, postoperative wound infection, number of operations, and operation time, a nomogram model for predicting chronic pain after TAPP were established, with a C-index index of 0.771 (95% CI: 0.732-0.811), the predicted value is basically the same as the measured value, and the area under the ROC curve (AUC) of the nomogram is 0.751.

Age <40 years, mechanical fixation patch, postoperative incision infection, reoperation and operation time ≥100 minutes are independent risk factors for chronic pain after laparoscopic transabdominal preperitoneal hernia repair, based on the above five independent risk factors. The established nomogram helps predict the risk of chronic pain after laparoscopic preperitoneal hernia repair.