Page 89 - 《南京医科大学学报(自然科学版)》2025年第9期
P. 89

第45卷第9期                           南京医科大学学报(自然科学版)
                  2025年9月                   Journal of Nanjing Medical University(Natural Sciences)     ·1301 ·


               ·临床研究·

                新型腰5进钉点椎弓根螺钉置钉方法的临床研究(附手术视频)



                陈研松,徐寅阳,伏佳驹,李青青,眭 涛,曹晓建                    *
                南京医科大学第一附属医院骨科,江苏 南京                 210029




               [摘   要] 目的:提出一种新型腰5进钉点,并通过与传统Magerl法置钉进行对比,验证其可行性与准确性,以改进腰5椎体椎
                弓根螺钉置入技术。方法:选取2020年6月—2023年12月南京医科大学第一附属医院需行腰5椎弓根螺钉内固定的患者60例,
                分为新型进钉组(Novel 组,30 例)和传统 Magerl 法组(Magerl 组,30 例)。两组各置入 60 枚腰 5 椎弓根螺钉,采用 Gertzbein 和
                Robbins提出的分类法来评估置钉准确性。比较两组间置钉满意率、术中透视剂量、手术时间、术中出血量和术后有无神经根
                侵犯症状。结果:Novel组置钉满意率为95%,显著高于Magerl组80%(P=0.013)。两组患者手术时间、术中出血量、透视剂量
                差异均无统计学意义(P > 0.05)。结论:新型腰5进钉点可显著提高置钉精度,且未增加手术风险,具有临床应用潜力。
               [关键词] 腰椎;椎弓根螺钉;解剖标志;手术精度
               [中图分类号] R687.3                   [文献标志码] A                      [文章编号] 1007⁃4368(2025)09⁃1301⁃07
                doi:10.7655/NYDXBNSN250024



                Clinical study on a new L5 entry point for pedicle screw placement(with surgical video)
                CHEN Yansong,XU Yinyang,FU Jiaju,LI Qingqing,SUI Tao,CAO Xiaojian *
                Department of Orthopedics,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,China


               [Abstract] Objective:This study aimed to improve the L5 pedicle screw placement technique by proposing a novel entry point and
                validating its feasibility and accuracy compared with the traditional Magerl method. Methods:Sixty patients requiring L5 pedicle screw
                fixation at the First Affiliated Hospital of Nanjing Medical University from June 2020 to December 2023 were enrolled and divided into
                two groups:the novel group(30 patients)and the traditional Magerl group(30 cases). Two groups each inserted 60 L5 pedicle screws.
                Screw placement accuracy was evaluated using the Gertzbein and Robbins classification system. Outcomes including satisfactory rate
                of screw placement,intraoperative fluoroscopy dose,operative time,blood loss,and postoperative nerve root injury symptoms were
                compared between the two groups. Results:The novel group demonstrated a significantly higher satisfactory rate(95%)compared to
                the Magerl group(80%,P=0.013). No significant intergroup differences were observed in operative time,intraoperative blood loss,
                fluoroscopy exposure dose(P > 0.05). No neurological complications occurred in either group. Conclusion:The novel L5 entry point
                significantly improved screw placement accuracy without increasing surgical risks,demonstrating potential for clinical application.
               [Key words] lumbar vertebrae;pedicle screw;anatomic landmark;surgical precision
                                                                        [J Nanjing Med Univ,2025,45(09):1301⁃1306,1361]





                    自椎弓根螺钉技术应用于脊柱外科以来,精准                          嵴顶点法)的误置率较高(6%~15%) 。螺钉误置
                                                                                                   [1]
                                                                                            [2]
                置钉始终是临床关注的重点。腰5椎体因解剖位置                            可能损伤椎旁神经血管结构 ,甚至需二次手术干
                深、人字嵴变异率高(约 19%)、关节突增生及椎体                         预 。尽管现有技术不断改进,如机器人导航技术
                                                                    [3]
                滑脱等因素,导致传统置钉方法(如Magerl 法、人字                       及3D打印技术,腰5椎弓根螺钉的精准置入仍是脊
                                                                  柱外科的难点之一。
               [基金项目] 江苏省重点研发计划(产业前瞻与共性技术)
                                                                      本研究基于传统置钉方法提出新型腰5进钉点
                项目(BE2018132)
                ∗                                                (曹氏点),其定位于腰5上关节突纵向中线中下1/3
                通信作者(Corresponding author),E⁃mail:xiaojiancao001@163.
                com(ORCID:0000⁃0001⁃5567⁃0536)                   (图 1)。前期生物力学研究表明,该进钉点能够显
   84   85   86   87   88   89   90   91   92   93   94