We sought to compare the safety and accuracy of a new free-hand pedicle screw placement technique to that of the conventional technique. One hundred fifty-three consecutive adult patients with simple fracture in the t...We sought to compare the safety and accuracy of a new free-hand pedicle screw placement technique to that of the conventional technique. One hundred fifty-three consecutive adult patients with simple fracture in the tho- racic or/and lumbar spine were alternately assigned to either the new free-hand or the conventional group. In the new free-hand technique group, preoperative computerized tomography （CT） images were used to calculate the targeted medial-lateral angle of each pedicle trajectory and the pedicle screw was inserted perpendicular to the corresponding supraspinal ligament. In the conventional technique group, the medial-lateral and cranial-caudal angle of each pedicle trajectory was determined by intraoperatively under fluoroscopic guidance. The accuracy rate of pedicle screw placement, the time of intraoperative fluoroscopy, the operating time and the amount of blood loss during operation were respectively compared. All screws were analyzed by using intraoperative ra- diographs, intraoperative triggered electromyography （EMG） monitoring data, postoperative CT data and clinical outcomes. The accuracy rate of pedicle screw placement in the new free-hand technique group and the conven- tional technique group was 96.3% and 94.2% （P 〈 0.05）, respectively. The intraoperative fluoroscopy time of the new technique group was less than that of the conventional technique group （5.37 seconds vs. 8.79 seconds, P 〈 0.05）. However, there was no statistical difference in the operating time and the amount of blood loss during op- eration （P 〉 0.05）. Pedicle screw placement with the free-hand technique which keeps the screw perpendicular to the supraspinal ligament is an accurate, reliable and safe technique to treat simple fracture in the thoracic or lum- bar spine.展开更多
Objective:To compare the position and the grade of screw perforation in Lenke 1 adolescent idiopathic scoliosis(AIS)surgery using intraoperative navigation system with and without calibration technique,and to explore ...Objective:To compare the position and the grade of screw perforation in Lenke 1 adolescent idiopathic scoliosis(AIS)surgery using intraoperative navigation system with and without calibration technique,and to explore the related factors of navigation deviation and the clinical significance of calibration technique.Methods:From 2014 to 2017,a total of 45 Lenke 1 AIS surgical cases were enrolled in this study.The 23 surgical cases were assisted with intraoperative navigation system(Navigation group)and another 22 cases received surgery using intraoperative navigation system with calibration technique(Calibration group).In two groups,the basic information and radiological data were all recorded.Postoperative CT scan with 3D reconstruction was used to analyze the accuracy of pedicle screw placement,as well as the length and position of cortical perforation.Results:There was no statistical difference between two groups in gender,age,Risser sign,both preoperative Cobb angles and flexibility of the major curve,as well as numbers of pedicle screws.477 and 469 pedicle screws were implanted in the navigation group and the calibration group respectively.The rate for major pedicle perforations 2 mm(grades 2,3)was 7.8%in navigation group.It was statistically significant difference from the 4.3%screw misplacement in calibration group(P=0.014).In navigation group,the rates of major pedicle perforations 2 mm were medial:3.4%,lateral:3.6%and anterior:0.6%respectively.The corresponding rates were 1.1%,2.6%and 0.4%in calibration group respectively.The rates of the medial cortical perforation 2 mm showed statistical difference between two groups(P=0.016).No serious complications,such as nerve or vascular injury,were found in all patients.Conclusion:Intraoperative navigation system with calibration technique provides the real-time monitoring of navigation deviation,the higher accuracy of pedicle screw insertion,the lower medial cortical perforation rate and the less complication rate,as well as a simple calibration technique with higher accuracy of screw placement in comparison to intraoperative navigation system for Lenke 1AIS surgery.展开更多
Objective:To evaluate the value of 3D printing assisted pedicle screw placement in the treatment of thoracolumbar spinal fractures.Methods: 56 cases of thoracolumbar spinal fractures patients underwent 3D printing ass...Objective:To evaluate the value of 3D printing assisted pedicle screw placement in the treatment of thoracolumbar spinal fractures.Methods: 56 cases of thoracolumbar spinal fractures patients underwent 3D printing assisted pedicle screw placement (study group) and another 56 cases of thoracolumbar spinal fractures patients underwent conventional screw placement (control group) in our department from February 2016 to September 2017 were selected. Then the surgical related indicators, JOA score, the reduction of injured vertebrae and complications were recorded and compared between groups at different time points, including, before operation (T0), postoperative 1mon (T1), postoperative 6mon (T2) and postoperative 12mon (T3).Results: The operation time, intraoperative X-ray fluoroscopy frequency and intraoperative blood loss in the study group were significantly lower than those in the control group (P<0.05), meanwhile the accuracy rate of screw placement was significantly higher than that of the control group (P<0.05). JOA scores at T1, T2 and T3 in both groups were significantly higher than those at T0 (P<0.05), and JOA scores at all postoperative time points in the study group were significantly higher than those in the control group (P<0.05). Compared with T0, the ratio of the anterior and posterior border height of injured vertebrae in the two groups at T2 was significantly increased (P<0.05), while the Cobb Angle of sagittal kyphoid significantly was decreased (P<0.05). Meanwhile, the reduction of injured vertebrae in the study group was significantly better than that the control group at T2 (P<0.05). The incidence of complications in the study group was significantly lower than that in the control group (P<0.05).Conclusion: The application of 3D printing assisted pedicle screw placement in the treatment has the advantages of less injury to patients, good prognosis and high safety, which is worthy of clinical application.展开更多
Objective To explore the differences between anatomic and CT measurements for anterior transoral axial pedicle screw placement. Methods C2 vertebrae of 60 adult spines were measured anatomically,while 20 adult spine v...Objective To explore the differences between anatomic and CT measurements for anterior transoral axial pedicle screw placement. Methods C2 vertebrae of 60 adult spines were measured anatomically,while 20 adult spine vertebrae were展开更多
Objective:Robot-assisted pedicle screw insertion has recently emerged as an alternative to the traditional free-hand technique.However,discrepancies in the accuracy of screw placement between the 2 methods have been h...Objective:Robot-assisted pedicle screw insertion has recently emerged as an alternative to the traditional free-hand technique.However,discrepancies in the accuracy of screw placement between the 2 methods have been highlighted by some comparative studies.This meta-analysis was conducted to synthesize evidence comparing these techniques.Methods:Searches were conducted in 5 electronic databases adhering to specific eligibility criteria for randomized and observational studies.The data were analyzed using RevMan software and the results are presented as odds ratios(ORs),mean differences,or standard mean differences(SMDs)with 95%confidence intervals(CIs).Our analysis included 12 studies(7 randomized trials and 5 observational studies,involving 883 patients and 4903 screws).Results:The results demonstrated a higher rate of Grade A Gertzbein and Robbins pedicle placement score(OR:1.77;95%CI:1.10e2.87),a lower rate of revision surgeries(OR:0.21;95%CI:0.09e0.52),and a shorter radiation exposure duration(SMD?1.38,95%CI:2.32 to0.44)in the robot-assisted group compared with the free-hand group.Nonetheless,the length of hospital stay,volume of intraoperative blood loss,postoperative visual analogue scale scores for back pain,and rate of wound infection were similar between the 2 groups.Significant heterogeneity was observed in some outcomes.Conclusion:Compared with the free-hand method,the robot-assisted technique provides greater accuracy and reduced radiation exposure.The efficacy of the robot-assisted technique is expected to improve further as experience with its use in surgery grows.展开更多
目的:分析比较机器人辅助手术与传统导航辅助手术在经皮微创椎弓根螺钉置入治疗胸腰椎骨折的临床效果差异,为临床治疗决策提供参考。方法:检索中国知网(CNKI)、维普、万方数据库及英文数据库的PubMed和Web of science,分别以中文“椎弓...目的:分析比较机器人辅助手术与传统导航辅助手术在经皮微创椎弓根螺钉置入治疗胸腰椎骨折的临床效果差异,为临床治疗决策提供参考。方法:检索中国知网(CNKI)、维普、万方数据库及英文数据库的PubMed和Web of science,分别以中文“椎弓根螺钉”“椎弓根钉”“机器人”为关键词进行主题检索,以英文“robot”“pedicle screws”进行系统检索,检索时间均自数据库建库至2022年12月,收集机器人辅助手术和传统导航辅助手术经皮微创椎弓根螺钉置入治疗胸腰锥骨折的相关临床研究,采用Cochrane量表和纽卡斯尔-渥太华量表(NOS)对文献进行质量评价并进行Meta分析,比较机器人辅助手术与传统导航辅助手术的临床效果差异。结果:将符合入选标准的15篇文献纳入研究。与传统导航辅助手术的经皮微创椎弓根螺钉置入相比,机器人辅助手术的手术时间更短[加权均数差(WMD)=-11.45,95%CI(-18.94~-3.95),P<0.05],术中出血量更少[WMD=-19.11,95%CI(-27.51~-10.70),P<0.001],置钉精度更高[A级钉数量:相对危险度(RR)=1.20,95%CI(1.16~1.25),P<0.001;A+B级钉数量:RR=1.09,95%CI(1.07~1.11),P<0.001],并发症更少[RR=0.35,95%CI(0.13~0.93),P<0.05],而住院时间差异无统计学意义(P>0.05)。结论:在经皮微创椎弓根螺钉置入治疗胸腰椎骨折中,机器人辅助手术与传统导航辅助手术相比,在手术时间、术中出血量、置钉精度以及并发症方面均具有优势。展开更多
Background：Although pedicle screw placement （PSP） is a well-established technique for spine surgery,the treatment of patients with primary invasive spinal tumor （PIST） has high surgical risks secondary to destroy...Background：Although pedicle screw placement （PSP） is a well-established technique for spine surgery,the treatment of patients with primary invasive spinal tumor （PIST） has high surgical risks secondary to destroyed pedicles.Intraoperative three-dimensional fluoroscopy-based navigation （ITFN） system permits safe and accurate instrumentation of the spine with the advantage of obtaining intraoperative real-time three-dimensional images and automatic registration.The aim of this study is to evaluate the feasibility and accuracy of PSP using ITFN system for patients afflicted with PIST in the thoracic spine.Methods：Fifty-one patients diagnosed with PISTs were retrospectively analyzed,and 157 pedicles screws were implanted in 23 patients using the free-hand technique （free-hand group） and 197 pedicle screws were implanted in 28 patients using the ITFN system （ITFN group）.Modified classification of Gertzbein and Robbins was used to evaluate the accuracy of PSP,and McCormick classification was applied for assessment of neurological function.Demographic data and factors affecting accuracy of screw insertion were compared using independent t-test while comparison of accuracy of screw insertion between the two groups was analyzed with Chi-square test.Results：Of 51 patients,39 demonstrated improved neurological status and the other 12 patients reported that symptoms remained the same.In the free-hand group,145 screws （92.4%） were Grade Ⅰ,9 screws （5.7%） were Grade Ⅱ,and 3 screws （1.9%） were Grade Ⅲ.In the ITFN group,192 screws （97.4%） were Grade Ⅰ,5 screws （2.6%） were Grade Ⅱ,and no Grade Ⅲ screw was detected.Statistical analysis showed that the accuracies of pedicle screws in the two groups are significantly different （χ^2 =4.981,P =0.026）.Conclusions：The treatments of PISTs include total tumor resection and reconstruction of spine stability.The ITFN system provides a high accuracy of pedicle screw placement.展开更多
目的:探讨对于腰椎管狭窄症且行单节段减压融合的患者,机器人辅助下的皮质骨螺钉(robot-assisted cortical bone trajectory screw,RCBTS)固定与机器人辅助下的椎弓根螺钉(robot-assisted pedicle screw,RPS)固定的疗效差异。方法:本研...目的:探讨对于腰椎管狭窄症且行单节段减压融合的患者,机器人辅助下的皮质骨螺钉(robot-assisted cortical bone trajectory screw,RCBTS)固定与机器人辅助下的椎弓根螺钉(robot-assisted pedicle screw,RPS)固定的疗效差异。方法:本研究为回顾性队列研究,回顾了2020年6月~2022年月6月于首都医科大学附属北京世纪坛医院行单节段减压融合且行机器人辅助下置钉的腰椎管狭窄症患者,共纳入99例,其中男性59例,女性40例,平均年龄67.07±4.65岁;应用皮质骨螺钉固定者41例(RCBTS组),应用椎弓根螺钉固定者58例(RPS组)。比较两种不同术式的切口长度、手术时间、术中出血量、术后的24h引流量、术后住院天数;比较术后3d、3个月、6个月的日本骨科协会(Japanese Orthopaedic Association,JOA)评分和腰痛视觉模拟评分(visual analogue scale,VAS),并对JOA评分和VAS评分变化进行了固定效应检验;通过审查术后影像学资料,根据Gertzbein-Robbins方法对螺钉位置进行分级,计算两种术式的置钉准确率;比较两种术式围术期以及术后3个月的并发症发生情况。结果:两组患者基线数据无统计学差异(P>0.05)。RCBTS组患者的手术时长(134.39±22.23min vs 152.93±19.10min,P<0.001)、切口长度(64.93±3.71mm vs 78.84±3.82mm,P<0.001)、术中出血(155.61±37.15mL vs 172.41±43.22mL,P=0.001)、术后24h引流量(83.66±21.54mL vs 101.21±29.80mL,P=0.002)以及术后住院天数(4.90±1.26d vs 6.26±1.66d,P<0.001)均显著小于RPS组患者。两组患者的JOA评分和VAS评分变化在各时间点无显著性差异(P>0.05)。固定效应检验结果表明时间是JOA和VAS评分变化的固定效应(P<0.001)。两组的各级别置钉率(A级:152/164 vs 211/232,P=0.538;B级:9/164 vs 15/232,P=0.688;C级:3/164 vs 6/232,P=0.619)、临床可接受率(161/164 vs 226/232,P=0.619)、置钉不良率(3/164 vs 6/232,P=0.619)以及术后并发症(仅RCBTS组一例患者出现伤口延迟愈合)的发生情况均无显著性差异(P>0.05)。结论:与RPS相比,接受RCBTS的患者在手术时间、切口长度、术中出血量、术后引流量以及术后住院时长方面均具有显著优势;在术后功能恢复和腰痛改善间两组没有显著差异。展开更多
文摘We sought to compare the safety and accuracy of a new free-hand pedicle screw placement technique to that of the conventional technique. One hundred fifty-three consecutive adult patients with simple fracture in the tho- racic or/and lumbar spine were alternately assigned to either the new free-hand or the conventional group. In the new free-hand technique group, preoperative computerized tomography （CT） images were used to calculate the targeted medial-lateral angle of each pedicle trajectory and the pedicle screw was inserted perpendicular to the corresponding supraspinal ligament. In the conventional technique group, the medial-lateral and cranial-caudal angle of each pedicle trajectory was determined by intraoperatively under fluoroscopic guidance. The accuracy rate of pedicle screw placement, the time of intraoperative fluoroscopy, the operating time and the amount of blood loss during operation were respectively compared. All screws were analyzed by using intraoperative ra- diographs, intraoperative triggered electromyography （EMG） monitoring data, postoperative CT data and clinical outcomes. The accuracy rate of pedicle screw placement in the new free-hand technique group and the conven- tional technique group was 96.3% and 94.2% （P 〈 0.05）, respectively. The intraoperative fluoroscopy time of the new technique group was less than that of the conventional technique group （5.37 seconds vs. 8.79 seconds, P 〈 0.05）. However, there was no statistical difference in the operating time and the amount of blood loss during op- eration （P 〉 0.05）. Pedicle screw placement with the free-hand technique which keeps the screw perpendicular to the supraspinal ligament is an accurate, reliable and safe technique to treat simple fracture in the thoracic or lum- bar spine.
基金Hainan Provincial Natural Science Foundation of China(819QN365)National Natural Science Foundation of China(81902270).
文摘Objective:To compare the position and the grade of screw perforation in Lenke 1 adolescent idiopathic scoliosis(AIS)surgery using intraoperative navigation system with and without calibration technique,and to explore the related factors of navigation deviation and the clinical significance of calibration technique.Methods:From 2014 to 2017,a total of 45 Lenke 1 AIS surgical cases were enrolled in this study.The 23 surgical cases were assisted with intraoperative navigation system(Navigation group)and another 22 cases received surgery using intraoperative navigation system with calibration technique(Calibration group).In two groups,the basic information and radiological data were all recorded.Postoperative CT scan with 3D reconstruction was used to analyze the accuracy of pedicle screw placement,as well as the length and position of cortical perforation.Results:There was no statistical difference between two groups in gender,age,Risser sign,both preoperative Cobb angles and flexibility of the major curve,as well as numbers of pedicle screws.477 and 469 pedicle screws were implanted in the navigation group and the calibration group respectively.The rate for major pedicle perforations 2 mm(grades 2,3)was 7.8%in navigation group.It was statistically significant difference from the 4.3%screw misplacement in calibration group(P=0.014).In navigation group,the rates of major pedicle perforations 2 mm were medial:3.4%,lateral:3.6%and anterior:0.6%respectively.The corresponding rates were 1.1%,2.6%and 0.4%in calibration group respectively.The rates of the medial cortical perforation 2 mm showed statistical difference between two groups(P=0.016).No serious complications,such as nerve or vascular injury,were found in all patients.Conclusion:Intraoperative navigation system with calibration technique provides the real-time monitoring of navigation deviation,the higher accuracy of pedicle screw insertion,the lower medial cortical perforation rate and the less complication rate,as well as a simple calibration technique with higher accuracy of screw placement in comparison to intraoperative navigation system for Lenke 1AIS surgery.
文摘Objective:To evaluate the value of 3D printing assisted pedicle screw placement in the treatment of thoracolumbar spinal fractures.Methods: 56 cases of thoracolumbar spinal fractures patients underwent 3D printing assisted pedicle screw placement (study group) and another 56 cases of thoracolumbar spinal fractures patients underwent conventional screw placement (control group) in our department from February 2016 to September 2017 were selected. Then the surgical related indicators, JOA score, the reduction of injured vertebrae and complications were recorded and compared between groups at different time points, including, before operation (T0), postoperative 1mon (T1), postoperative 6mon (T2) and postoperative 12mon (T3).Results: The operation time, intraoperative X-ray fluoroscopy frequency and intraoperative blood loss in the study group were significantly lower than those in the control group (P<0.05), meanwhile the accuracy rate of screw placement was significantly higher than that of the control group (P<0.05). JOA scores at T1, T2 and T3 in both groups were significantly higher than those at T0 (P<0.05), and JOA scores at all postoperative time points in the study group were significantly higher than those in the control group (P<0.05). Compared with T0, the ratio of the anterior and posterior border height of injured vertebrae in the two groups at T2 was significantly increased (P<0.05), while the Cobb Angle of sagittal kyphoid significantly was decreased (P<0.05). Meanwhile, the reduction of injured vertebrae in the study group was significantly better than that the control group at T2 (P<0.05). The incidence of complications in the study group was significantly lower than that in the control group (P<0.05).Conclusion: The application of 3D printing assisted pedicle screw placement in the treatment has the advantages of less injury to patients, good prognosis and high safety, which is worthy of clinical application.
文摘Objective To explore the differences between anatomic and CT measurements for anterior transoral axial pedicle screw placement. Methods C2 vertebrae of 60 adult spines were measured anatomically,while 20 adult spine vertebrae were
基金the Human Research Ethics Committee,Faculty of Medicine Ramathibodi Hospital,Mahidol University,IRB No.(COA.MURA2020/1934).
文摘Objective:Robot-assisted pedicle screw insertion has recently emerged as an alternative to the traditional free-hand technique.However,discrepancies in the accuracy of screw placement between the 2 methods have been highlighted by some comparative studies.This meta-analysis was conducted to synthesize evidence comparing these techniques.Methods:Searches were conducted in 5 electronic databases adhering to specific eligibility criteria for randomized and observational studies.The data were analyzed using RevMan software and the results are presented as odds ratios(ORs),mean differences,or standard mean differences(SMDs)with 95%confidence intervals(CIs).Our analysis included 12 studies(7 randomized trials and 5 observational studies,involving 883 patients and 4903 screws).Results:The results demonstrated a higher rate of Grade A Gertzbein and Robbins pedicle placement score(OR:1.77;95%CI:1.10e2.87),a lower rate of revision surgeries(OR:0.21;95%CI:0.09e0.52),and a shorter radiation exposure duration(SMD?1.38,95%CI:2.32 to0.44)in the robot-assisted group compared with the free-hand group.Nonetheless,the length of hospital stay,volume of intraoperative blood loss,postoperative visual analogue scale scores for back pain,and rate of wound infection were similar between the 2 groups.Significant heterogeneity was observed in some outcomes.Conclusion:Compared with the free-hand method,the robot-assisted technique provides greater accuracy and reduced radiation exposure.The efficacy of the robot-assisted technique is expected to improve further as experience with its use in surgery grows.
文摘目的:分析比较机器人辅助手术与传统导航辅助手术在经皮微创椎弓根螺钉置入治疗胸腰椎骨折的临床效果差异,为临床治疗决策提供参考。方法:检索中国知网(CNKI)、维普、万方数据库及英文数据库的PubMed和Web of science,分别以中文“椎弓根螺钉”“椎弓根钉”“机器人”为关键词进行主题检索,以英文“robot”“pedicle screws”进行系统检索,检索时间均自数据库建库至2022年12月,收集机器人辅助手术和传统导航辅助手术经皮微创椎弓根螺钉置入治疗胸腰锥骨折的相关临床研究,采用Cochrane量表和纽卡斯尔-渥太华量表(NOS)对文献进行质量评价并进行Meta分析,比较机器人辅助手术与传统导航辅助手术的临床效果差异。结果:将符合入选标准的15篇文献纳入研究。与传统导航辅助手术的经皮微创椎弓根螺钉置入相比,机器人辅助手术的手术时间更短[加权均数差(WMD)=-11.45,95%CI(-18.94~-3.95),P<0.05],术中出血量更少[WMD=-19.11,95%CI(-27.51~-10.70),P<0.001],置钉精度更高[A级钉数量:相对危险度(RR)=1.20,95%CI(1.16~1.25),P<0.001;A+B级钉数量:RR=1.09,95%CI(1.07~1.11),P<0.001],并发症更少[RR=0.35,95%CI(0.13~0.93),P<0.05],而住院时间差异无统计学意义(P>0.05)。结论:在经皮微创椎弓根螺钉置入治疗胸腰椎骨折中,机器人辅助手术与传统导航辅助手术相比,在手术时间、术中出血量、置钉精度以及并发症方面均具有优势。
文摘Background：Although pedicle screw placement （PSP） is a well-established technique for spine surgery,the treatment of patients with primary invasive spinal tumor （PIST） has high surgical risks secondary to destroyed pedicles.Intraoperative three-dimensional fluoroscopy-based navigation （ITFN） system permits safe and accurate instrumentation of the spine with the advantage of obtaining intraoperative real-time three-dimensional images and automatic registration.The aim of this study is to evaluate the feasibility and accuracy of PSP using ITFN system for patients afflicted with PIST in the thoracic spine.Methods：Fifty-one patients diagnosed with PISTs were retrospectively analyzed,and 157 pedicles screws were implanted in 23 patients using the free-hand technique （free-hand group） and 197 pedicle screws were implanted in 28 patients using the ITFN system （ITFN group）.Modified classification of Gertzbein and Robbins was used to evaluate the accuracy of PSP,and McCormick classification was applied for assessment of neurological function.Demographic data and factors affecting accuracy of screw insertion were compared using independent t-test while comparison of accuracy of screw insertion between the two groups was analyzed with Chi-square test.Results：Of 51 patients,39 demonstrated improved neurological status and the other 12 patients reported that symptoms remained the same.In the free-hand group,145 screws （92.4%） were Grade Ⅰ,9 screws （5.7%） were Grade Ⅱ,and 3 screws （1.9%） were Grade Ⅲ.In the ITFN group,192 screws （97.4%） were Grade Ⅰ,5 screws （2.6%） were Grade Ⅱ,and no Grade Ⅲ screw was detected.Statistical analysis showed that the accuracies of pedicle screws in the two groups are significantly different （χ^2 =4.981,P =0.026）.Conclusions：The treatments of PISTs include total tumor resection and reconstruction of spine stability.The ITFN system provides a high accuracy of pedicle screw placement.
文摘目的:探讨对于腰椎管狭窄症且行单节段减压融合的患者,机器人辅助下的皮质骨螺钉(robot-assisted cortical bone trajectory screw,RCBTS)固定与机器人辅助下的椎弓根螺钉(robot-assisted pedicle screw,RPS)固定的疗效差异。方法:本研究为回顾性队列研究,回顾了2020年6月~2022年月6月于首都医科大学附属北京世纪坛医院行单节段减压融合且行机器人辅助下置钉的腰椎管狭窄症患者,共纳入99例,其中男性59例,女性40例,平均年龄67.07±4.65岁;应用皮质骨螺钉固定者41例(RCBTS组),应用椎弓根螺钉固定者58例(RPS组)。比较两种不同术式的切口长度、手术时间、术中出血量、术后的24h引流量、术后住院天数;比较术后3d、3个月、6个月的日本骨科协会(Japanese Orthopaedic Association,JOA)评分和腰痛视觉模拟评分(visual analogue scale,VAS),并对JOA评分和VAS评分变化进行了固定效应检验;通过审查术后影像学资料,根据Gertzbein-Robbins方法对螺钉位置进行分级,计算两种术式的置钉准确率;比较两种术式围术期以及术后3个月的并发症发生情况。结果:两组患者基线数据无统计学差异(P>0.05)。RCBTS组患者的手术时长(134.39±22.23min vs 152.93±19.10min,P<0.001)、切口长度(64.93±3.71mm vs 78.84±3.82mm,P<0.001)、术中出血(155.61±37.15mL vs 172.41±43.22mL,P=0.001)、术后24h引流量(83.66±21.54mL vs 101.21±29.80mL,P=0.002)以及术后住院天数(4.90±1.26d vs 6.26±1.66d,P<0.001)均显著小于RPS组患者。两组患者的JOA评分和VAS评分变化在各时间点无显著性差异(P>0.05)。固定效应检验结果表明时间是JOA和VAS评分变化的固定效应(P<0.001)。两组的各级别置钉率(A级:152/164 vs 211/232,P=0.538;B级:9/164 vs 15/232,P=0.688;C级:3/164 vs 6/232,P=0.619)、临床可接受率(161/164 vs 226/232,P=0.619)、置钉不良率(3/164 vs 6/232,P=0.619)以及术后并发症(仅RCBTS组一例患者出现伤口延迟愈合)的发生情况均无显著性差异(P>0.05)。结论:与RPS相比,接受RCBTS的患者在手术时间、切口长度、术中出血量、术后引流量以及术后住院时长方面均具有显著优势;在术后功能恢复和腰痛改善间两组没有显著差异。
