BACKGROUND Although en bloc dissection of hepatic hilum lymph nodes has many advantages in radical tumor treatment,the feasibility and safety of this approach for laparo-scopic pancreaticoduodenectomy(LPD)require furt...BACKGROUND Although en bloc dissection of hepatic hilum lymph nodes has many advantages in radical tumor treatment,the feasibility and safety of this approach for laparo-scopic pancreaticoduodenectomy(LPD)require further clinical evaluation and investigation.AIM To explore the application value of the"five steps four quadrants"modularized en bloc dissection technique for accessing hepatic hilum lymph nodes in LPD patients.METHODS A total of 52 patients who underwent LPD via the"five steps four quadrants"modularized en bloc dissection technique for hepatic hilum lymph nodes from April 2021 to July 2023 in our department were analyzed retrospectively.The patients'body mass index(BMI),preoperative laboratory indices,intraoperative variables and postoperative complications were recorded.The relationships between preoperative data and intraoperative lymph node dissection time and blood loss were also analyzed.RESULTS Among the 52 patients,36 were males and 16 were females,and the average age was 62.2±11.0 years.There were 26 patients with pancreatic head cancer,16 patients with periampullary cancer,and 10 patients with distal bile duct cancer.The BMI was 22.3±3.3 kg/m²,and the median total bilirubin(TBIL)concentration was 57.7(16.0-155.7)µmol/L.All patients successfully underwent the"five steps four quadrants"modularized en bloc dissection technique without lymph node clearance-related complications such as postoperative bleeding or lymphatic leakage.Correlation analysis revealed significant associations between preoperative BMI(r=0.3581,P=0.0091),TBIL level(r=0.2988,P=0.0341),prothrombin time(r=0.3018,P=0.0297)and lymph node dissection time.Moreover,dissection time was significantly correlated with intraoperative blood loss(r=0.7744,P<0.0001).Further stratified analysis demonstrated that patients with a preoperative BMI≥21.9 kg/m²and a TIBL concentration≥57.7μmol/L had significantly longer lymph node dissection times(both P<0.05).CONCLUSION The"five steps four quadrants"modularized en bloc dissection technique for accessing the hepatic hilum lymph node is safe and feasible for LPD.This technique is expected to improve the efficiency of hepatic hilum lymph node dissection and shorten the learning curve;thus,it is worthy of further clinical promotion and application.展开更多
目的探讨Quadrant系统微创通道下3D打印导航模块辅助腰椎精准植钉的可行性及疗效。方法取12具成人尸体腰椎(L1~5)标本,经CT扫描及三维重建,于Mimics软件中构建通过椎弓根中心长轴的钉道,根据骨面可剥离范围设计并3D打印导航模块。在尸...目的探讨Quadrant系统微创通道下3D打印导航模块辅助腰椎精准植钉的可行性及疗效。方法取12具成人尸体腰椎(L1~5)标本,经CT扫描及三维重建,于Mimics软件中构建通过椎弓根中心长轴的钉道,根据骨面可剥离范围设计并3D打印导航模块。在尸体标本上实施导航模块辅助下腰椎椎弓根螺钉植入后,再次CT扫描并三维重建,对手术前后重建模型进行三维配准,评价植钉符合率。2014年11月—2015年11月,对31例退行性腰椎不稳患者行Quadrant系统微创通道下3D打印导航模块辅助植钉术。男14例,女17例;年龄42~60岁,平均45.2岁。病程6~13个月,平均8.8个月。单节段15例,两节段13例,三节段3例。术前疼痛视觉模拟评分(VAS)为(7.59±1.04)分,Oswestry功能障碍指数(ODI)评分为(76.21±5.82)分,日本骨科协会(JOA)评分(9.21±1.64)分。结果12具标本共植入120枚螺钉,三维配准显示植钉符合率100%。临床31例患者共植入162枚螺钉。手术时间65~147 min,平均102.23 min;术中出血量为50~116 m L,平均78.20 m L;术中辐射暴露时间为8~54 s,平均42 s。术后3~7 d三维配准显示植钉符合率为98.15%(159/162)。术后4周VAS评分为(2.24±0.80)分,ODI评分为(29.17±2.50)分,JOA评分为(23.43±1.14)分,与术前比较差异均有统计学意义(t=14.842,P=0.006;t=36.927,P=0.002;t=–36.031,P=0.001)。31例患者均获随访,随访时间8~24个月,平均18.7个月。术后切口均Ⅰ期愈合,无手术并发症发生。随访期间复查腰椎X线片及CT显示椎弓根螺钉准确在位,无松动、断裂,椎间植骨融合良好。结论Quadrant系统微创通道下采用3D打印导航模块可以实现手术微创、少辐射及精准植钉目的。展开更多
基金Supported by Health Research Program of Anhui,No.AHWJ2022b032。
文摘BACKGROUND Although en bloc dissection of hepatic hilum lymph nodes has many advantages in radical tumor treatment,the feasibility and safety of this approach for laparo-scopic pancreaticoduodenectomy(LPD)require further clinical evaluation and investigation.AIM To explore the application value of the"five steps four quadrants"modularized en bloc dissection technique for accessing hepatic hilum lymph nodes in LPD patients.METHODS A total of 52 patients who underwent LPD via the"five steps four quadrants"modularized en bloc dissection technique for hepatic hilum lymph nodes from April 2021 to July 2023 in our department were analyzed retrospectively.The patients'body mass index(BMI),preoperative laboratory indices,intraoperative variables and postoperative complications were recorded.The relationships between preoperative data and intraoperative lymph node dissection time and blood loss were also analyzed.RESULTS Among the 52 patients,36 were males and 16 were females,and the average age was 62.2±11.0 years.There were 26 patients with pancreatic head cancer,16 patients with periampullary cancer,and 10 patients with distal bile duct cancer.The BMI was 22.3±3.3 kg/m²,and the median total bilirubin(TBIL)concentration was 57.7(16.0-155.7)µmol/L.All patients successfully underwent the"five steps four quadrants"modularized en bloc dissection technique without lymph node clearance-related complications such as postoperative bleeding or lymphatic leakage.Correlation analysis revealed significant associations between preoperative BMI(r=0.3581,P=0.0091),TBIL level(r=0.2988,P=0.0341),prothrombin time(r=0.3018,P=0.0297)and lymph node dissection time.Moreover,dissection time was significantly correlated with intraoperative blood loss(r=0.7744,P<0.0001).Further stratified analysis demonstrated that patients with a preoperative BMI≥21.9 kg/m²and a TIBL concentration≥57.7μmol/L had significantly longer lymph node dissection times(both P<0.05).CONCLUSION The"five steps four quadrants"modularized en bloc dissection technique for accessing the hepatic hilum lymph node is safe and feasible for LPD.This technique is expected to improve the efficiency of hepatic hilum lymph node dissection and shorten the learning curve;thus,it is worthy of further clinical promotion and application.
文摘目的探讨Quadrant系统微创通道下3D打印导航模块辅助腰椎精准植钉的可行性及疗效。方法取12具成人尸体腰椎(L1~5)标本,经CT扫描及三维重建,于Mimics软件中构建通过椎弓根中心长轴的钉道,根据骨面可剥离范围设计并3D打印导航模块。在尸体标本上实施导航模块辅助下腰椎椎弓根螺钉植入后,再次CT扫描并三维重建,对手术前后重建模型进行三维配准,评价植钉符合率。2014年11月—2015年11月,对31例退行性腰椎不稳患者行Quadrant系统微创通道下3D打印导航模块辅助植钉术。男14例,女17例;年龄42~60岁,平均45.2岁。病程6~13个月,平均8.8个月。单节段15例,两节段13例,三节段3例。术前疼痛视觉模拟评分(VAS)为(7.59±1.04)分,Oswestry功能障碍指数(ODI)评分为(76.21±5.82)分,日本骨科协会(JOA)评分(9.21±1.64)分。结果12具标本共植入120枚螺钉,三维配准显示植钉符合率100%。临床31例患者共植入162枚螺钉。手术时间65~147 min,平均102.23 min;术中出血量为50~116 m L,平均78.20 m L;术中辐射暴露时间为8~54 s,平均42 s。术后3~7 d三维配准显示植钉符合率为98.15%(159/162)。术后4周VAS评分为(2.24±0.80)分,ODI评分为(29.17±2.50)分,JOA评分为(23.43±1.14)分,与术前比较差异均有统计学意义(t=14.842,P=0.006;t=36.927,P=0.002;t=–36.031,P=0.001)。31例患者均获随访,随访时间8~24个月,平均18.7个月。术后切口均Ⅰ期愈合,无手术并发症发生。随访期间复查腰椎X线片及CT显示椎弓根螺钉准确在位,无松动、断裂,椎间植骨融合良好。结论Quadrant系统微创通道下采用3D打印导航模块可以实现手术微创、少辐射及精准植钉目的。
