Objective To investigate the factors influencing the persistence of residual low back pain following percutaneous vertebroplasty(PVP)in patients with osteoporotic vertebral fractures(OVF),in order to provide a scientific basis for clinical intervention strategies.Methods A retrospective analysis was conducted on data from 1 120 patients diagnosed with OVF who received PVP treatment between July 2020 and June 2025.Among them,61 patients who experienced residual low back pain in the early postoperative period(defined as 2 days to 1 month after surgery)with a postoperative visual analog scale(VAS)score greater than 3 points were selected as the observation group.An additional 61 control subjects were matched to the observation group at a 1∶1 ratio based on age(±5 years),gender,and preoperative bone mineral density(±0.5 standard deviation).Univariate and logistic regression analyses were subsequently performed to evaluate potential influencing factors.Results Univariate analysis revealed statistically significant differences between the two groups with respect to preoperative thoracolumbar fascia injury(TFI),MRI-detected liquefaction signals in the affected vertebrae,the number of involved vertebrae(≥2),and suboptimal bone cement distribution(P<0.05).Multivariate regression analysis confirmed that these factors were independent risk factors,with corresponding odds ratios(ORs)of 5.378,6.111,3.245,and 2.890(all P<0.05).The area under the curve(AUC)of the predictive model was 0.929,indicating a high level of predictive accuracy.Conclusion Preoperative TFI,MRI-demonstrated liquefaction signals in the affected vertebrae,the presence of multiple responsible vertebrae,and suboptimal bone cement distribution may contribute to an increased risk of early residual low back pain following PVP.

Objective To investigate the factors influencing the persistence of residual low back pain following percutaneous vertebroplasty(PVP)in patients with osteoporotic vertebral fractures(OVF),in order to provide a scientific basis for clinical intervention strategies.Methods A retrospective analysis was conducted on data from 1 120 patients diagnosed with OVF who received PVP treatment between July 2020 and June 2025.Among them,61 patients who experienced residual low back pain in the early postoperative period(defined as 2 days to 1 month after surgery)with a postoperative visual analog scale(VAS)score greater than 3 points were selected as the observation group.An additional 61 control subjects were matched to the observation group at a 1∶1 ratio based on age(±5 years),gender,and preoperative bone mineral density(±0.5 standard deviation).Univariate and logistic regression analyses were subsequently performed to evaluate potential influencing factors.Results Univariate analysis revealed statistically significant differences between the two groups with respect to preoperative thoracolumbar fascia injury(TFI),MRI-detected liquefaction signals in the affected vertebrae,the number of involved vertebrae(≥2),and suboptimal bone cement distribution(P<0.05).Multivariate regression analysis confirmed that these factors were independent risk factors,with corresponding odds ratios(ORs)of 5.378,6.111,3.245,and 2.890(all P<0.05).The area under the curve(AUC)of the predictive model was 0.929,indicating a high level of predictive accuracy.Conclusion Preoperative TFI,MRI-demonstrated liquefaction signals in the affected vertebrae,the presence of multiple responsible vertebrae,and suboptimal bone cement distribution may contribute to an increased risk of early residual low back pain following PVP.

Objective To evaluate the efficacy of laparoscopic management for bile duct and gastrointestinal injuries during laparoscopic cholecystectomy. Methods Laparoscopic cholecystectomy with or without laparoscopic bile duct exploration was attempted in 9 016 consecutive patients between October 1991 and December 2002. We experienced 14 cases of bile duct injuries (0.15%) and 3 cases of gastrointestinal injuries (0.03%). One patient with circumferential injury and 10 patients with partial laceration injuries of the bile duct underwent a laparoscopic simple closure. One gastric and two duodenal injuries were successfully repaired under laparoscope. Results Expect 1 patient suffered postoperative biliary leakage and bile duct stricture 1 year after the surgery, all the patients were cured and discharged from the hospital. Conclusions Partial laceration injuries of the bile duct or gastrointestinal injuries could be treated with a laparoscopic technique. Concerning laparoscopic management of circumferential bile duct injuries, further study should be taken.

Objective To compare common bile duct pressure changes after laparoscopic common bile duct exploration between primary closure of the bile duct and T-tube drainage.Methods Postoperative common bile duct pressure changes were analyzed in 30 cases of laparoscopic common bile duct exploration,including 15 cases of primary suture of the bile duct and 15 cases of T-tube biliary drainage respectively,from August 2003 to January 2004 in this hospital.Results ①The hydrostatic pressure in common bile duct was 6.0~18.5 cm H_2O(0.54~1.66 kPa).②As compared with preoperative levels,the common bile duct pressure increased slightly on the first postoperative day and decreased significantly on the fifth postoperative day in primary suture cases(q=4.531,P