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1.陆军军医大学第一附属医院急救部,重庆 400038
2.上海市浦东新区浦南医院急诊科,上海 200125
张雷,E-mail:ZLeijzk@126.com
收稿日期:2024-11-26,
纸质出版日期:2025-09-25
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肖伟,朱浩然,张雷.不同空间分布空心钉内固定治疗股骨颈Pauwels Ⅱ型骨折的生物力学研究[J].局解手术学杂志,2025,34(09):789-794.
XIAO Wei,ZHU Hao-ran,ZHANG Lei.Biomechanical study of cannulated screws internal fixation with different spatial distribution in the treatment of Pauwels Ⅱ femoral neck fractures[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(09):789-794.
肖伟,朱浩然,张雷.不同空间分布空心钉内固定治疗股骨颈Pauwels Ⅱ型骨折的生物力学研究[J].局解手术学杂志,2025,34(09):789-794. DOI: 10.11659/jjssx.11E024141.
XIAO Wei,ZHU Hao-ran,ZHANG Lei.Biomechanical study of cannulated screws internal fixation with different spatial distribution in the treatment of Pauwels Ⅱ femoral neck fractures[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(09):789-794. DOI: 10.11659/jjssx.11E024141.
目的
2
利用有限元方法分析股骨颈PauwelsⅡ型骨折治疗中不同空间分布的空心钉内固定模型的生物力学性能。
方法
2
选择1名健康男性志愿者作为研究对象,采用128层螺旋CT对其进行股骨头至股骨远端薄层扫描,初步构建股骨的三维网格模型,并通过后续处理获得符合人体解剖学特征的空心钉内固定模型。以股骨干中心线为基准绘制水平线,设定骨折线位于股骨颈中心,且与水平线成50°角,构建股骨颈PauwelsⅡ型骨折模型。在SolidWorks 2021软件中,模拟设计5种不同空间分布的空心钉内固定模型,将装配模型导入Ansys 2021R1软件,建立有限元模型。对5种模型股骨及其内固定物的应力分布情况进行评估,并分析股骨颈骨折截面在X、Y、Z轴方向上的位移情况,以及股骨和内固定物的总体位移情况。
结果
2
5种模型的股骨近端应力集中于股骨颈骨折线的下方,其中倒等边三角形构型的应力峰值最小(19.179 MPa)。5种模型的内固定物总体应力均集中于股骨近端的腹侧空心钉中段区域,其中倒等边三角形构型的应力峰值最小(61.742 MPa)。5种模型的股骨颈骨折截面在X、Y轴方向上的最大位移均出现在截面的前上方区域,其中倒等边三角形构型的位移最小(X轴:0.446 54 mm、Y轴:0.704 21 mm)。5种模型股骨颈骨折截面在Z轴方向上的最大位移均出现在截面后上方,其中倒等边三角形构型的位移最小(0.225 62 mm)。5种模型的股骨近端总体位移均集中于股骨头应力加载区域,其中倒等边三角形构型的位移最小(0.721 16 mm)。5种模型内固定物最大位移均位于股骨颈上方靠近后壁固定的空心钉尖端,其中倒等边三角形构型的位移最小(0.686 83 mm)。
结论
2
在股骨颈PauwelsⅡ型骨折的5种不同空心钉内固定模型中,倒等边三角形构型的应力分散效果最佳,骨折断端位移最小,治疗股骨颈Pwuwels Ⅱ型骨折的生物力学稳定性最好。
Objective
2
To analyze the biomechanical characteristics of cannulated screws internal fixation models with different spatial distribution in the treatment of PauwelsⅡ fracture of the femoral neck through finite element analysis.
Methods
2
One healthy male volunteer was selected as the research subject. A thin-layer scan from the femoral head to the distal femur of the volunteer was performed using 128-slice spiral CT to preliminarily construct a three-dimensional mesh model of the femur. Through subsequent processing, a cannulated screw internal fixation model conforming to human anatomical characteristics was obtained.A horizontal line was drawn based on the center line of the femoral shaft, and the fracture line was set at the center of the femoral neck with an angle of 50° to the horizontal line to construct the Pauwels Ⅱ femoral neck fracture model. Five kinds of cannulated screw internal fixation models with different spatial distribution were simulated and designed in SolidWorks 2021 software, and the assembly models were imported into Ansys 2021R1 software to establish the finite element model.The stress distribution of the femur and its internal fixator in the five models were evaluated, and the displacement of the femoral neck fracture cross-section in the X, Y, and Z directions, as well as the overall displacement of the femur and the internal fixator were analyzed.
Results
2
The stresses of the proximal femur of the five models concentrated below the femoral neck fracture line, and the stress peak of the inverted equilateral triangle configuration was the smallest (19.179 MPa).The total stresses of the internal fixator in the five models all concentrated in the middle region of the ventral cannulated screw at the proximal femur, and the stress peak of the inverted equilateral triangle configuration was the lowest (61.742 MPa).The maximum displacement of the femoral neck fracture cross-section in the X and Y directions of the five models all appeared in the anterior and upper regions of the cross-section, and the displacement of the inverted equilateral triangle configuration was the smallest (X axis: 0.446 54 mm, Y axis: 0.704 21 mm).The maximum displacement of the femoral neck fracture cross-section in the Z direction of the five models all occurred in the posterior upper part of the cross-section, among which the displacement of the inverted equilateral triangle configuration was the smallest (0.225 62 mm).The overall displacement of the proximal femur of the five models concentrated in the stress-loading area of the femoral head, and the displacement of the inverted equilateral triangle configuration was the smallest (0.721 16 mm). The maximum displacement of the internal fixator of the five models located at the tip of the cannulated screw fixed at the top of the femoral neck near the posterior wall, and the displacement of the inverted equilateral triangle configuration was the smallest (0.686 83 mm).
Conclusion
2
Among the five different cannulated screws internal fixation models for Pauwels Ⅱ femoral neck fractures, the inverted equilateral triangle configuration has the best stress dispersion effect, the smallest displacement of fracture end, and the best biomechanical stability.
陈泽铭 , 杨放 , 余盛 , 等 . 预防股骨颈骨折空心钉内固定术后股骨颈短缩空心螺纹钉优化选择的有限元分析 [J]. 中国骨伤 , 2022 , 35 ( 11 ): 1042 - 1048 . doi: 10.12200/j.issn.1003-0034.2022.11.007 http://dx.doi.org/10.12200/j.issn.1003-0034.2022.11.007 .
魏文卿 , 崔海坡 , 陈舰 , 等 . 不同固定方式对股骨颈骨折固定效果的影响 [J]. 医用生物力学 , 2020 , 35 ( 2 ): 216 - 222 . doi: 10.16156/j.1004-7220.2020.02.014 http://dx.doi.org/10.16156/j.1004-7220.2020.02.014 .
刘刚 , 刘卫东 , 张猛 , 等 . 股骨颈骨折多枚空心加压螺钉内固定术后股骨头坏死的影响因素分析 [J]. 局解手术学杂志 , 2021 , 30 ( 6 ): 506 - 510 . doi: 10.11659/jjssx.10E020086 http://dx.doi.org/10.11659/jjssx.10E020086 .
徐景利 , 陈达 , 林天烨 , 等 . 腓骨柱联合空心螺钉与3枚空心螺钉比较治疗股骨颈骨折的有限元分析 [J]. 新疆医科大学学报 , 2019 , 42 ( 3 ): 301 - 308 . doi: 10.3969/j.issn.1009-5551.2019.03.006 http://dx.doi.org/10.3969/j.issn.1009-5551.2019.03.006 .
苏旭 . 不同空间构型的空心加压螺钉内固定治疗PauwelsⅢ型股骨颈骨折的有限元分析 [D]. 蚌埠 : 蚌埠医学院 , 2020 .
Sano K , Homma Y , Shirogane Y , et al . Acetabular morphological variation in Asian patients with femoral neck fracture:a three-dimensional CT-based study [J]. Injury , 2022 , 53 ( 8 ): 2823 - 2831 . doi: 10.1016/j.injury.2022.06.023 http://dx.doi.org/10.1016/j.injury.2022.06.023 .
党修亭 , 郑峰 , 马玉林 , 等 . 股骨颈动力交叉钉系统治疗Pauwels Ⅱ、Ⅲ型股骨颈骨折的疗效 [J]. 中国临床研究 , 2023 , 36 ( 10 ): 1540 - 1544 . doi: 10.13429/j.cnki.cjcr.2023.07.010 http://dx.doi.org/10.13429/j.cnki.cjcr.2023.07.010 .
Yuan KX , Yang F , Fu K , et al . Internal fixation using fully threaded cannulated compression screws for fresh femoral neck fractures in adults [J]. J Orthop Surg Res , 2022 , 17 ( 1 ): 108 . doi: 10.1186/s13018-022-03005-8 http://dx.doi.org/10.1186/s13018-022-03005-8 .
段霄 , 张智勇 , 陈宗文 , 等 . 空心钉与股骨颈动力交叉钉系统治疗Pauwels Ⅱ~Ⅲ型股骨颈骨折的疗效比较 [J]. 局解手术学杂志 , 2023 , 32 ( 4 ): 340 - 345 . doi: 10.11659/jjssx.08E022141 http://dx.doi.org/10.11659/jjssx.08E022141 .
葛双雷 , 王雪飞 , 胡国东 , 等 . 股骨颈动力交叉钉系统治疗中青年PauwelsⅡ型股骨颈骨折临床价值 [J]. 中国骨与关节杂志 , 2022 , 11 ( 4 ): 255 - 260 . doi: 10.3969/j.issn.2095-252X.2022.04.004 http://dx.doi.org/10.3969/j.issn.2095-252X.2022.04.004 .
邓思煜 , 谭绍林 , 严国华 , 等 . 股骨颈动力交叉钉系统与动力髋螺钉治疗PauwelsⅡ型股骨颈骨折的有限元分析 [J]. 中华实验外科杂志 , 2021 , 38 ( 10 ): 1959 . doi: 10.3760/cma.j.cn421213-2021 0118-00063 http://dx.doi.org/10.3760/cma.j.cn421213-20210118-00063 .
范克杰 , 陈柯 , 田可为 , 等 . 空心螺钉联合内侧支撑钢板治疗青壮年Pauwls Ⅱ、Ⅲ型股骨颈骨折 [J]. 临床骨科杂志 , 2023 , 26 ( 4 ): 565 - 569 . doi: 10.3969/j.issn.1008-0287.2023.04.033 http://dx.doi.org/10.3969/j.issn.1008-0287.2023.04.033 .
周博 , 尹莲平 . 股骨颈系统对PauwelsⅡ型股骨颈骨折患者的影响 [J]. 中外医学研究 , 2023 , 21 ( 8 ): 44 - 47 . doi: 10.14033/j.cnki.cfmr.2023.08.011 http://dx.doi.org/10.14033/j.cnki.cfmr.2023.08.011 .
曹家全 , 王景燕 , 向炜 , 等 . 新型体外定位器配合空心拉力螺钉治疗PauwelsⅠ型和Ⅱ型股骨颈骨折的效果分析 [J]. 当代医药论丛 , 2022 , 20 ( 8 ): 65 - 68 . doi: 10.3969/j.issn.2095-7629.2022. 08.021 http://dx.doi.org/10.3969/j.issn.2095-7629.2022.08.021 .
王子凡 , 缪佳庆 . 空心钉F形内固定骨质疏松性Pauwels Ⅱ型股骨颈骨折的体外生物力学研究 [J]. 中国骨与关节损伤杂志 , 2020 , 35 ( 2 ): 153 - 155 . doi: 10.7531/j.issn.1672-9935.2020.02.013 http://dx.doi.org/10.7531/j.issn.1672-9935.2020.02.013 .
钟志辉 , 林焱斌 , 庄研 , 等 . “轴心加压+侧方支撑”空心螺钉固定Pauwels Ⅱ型股骨颈骨折的力学分析 [J]. 中华创伤骨科杂志 , 2022 , 24 ( 3 ): 253 - 257 . doi: 10.3760/cma.j.cn115530-20210929-00431 http://dx.doi.org/10.3760/cma.j.cn115530-20210929-00431 .
陈彦文 , 张汉军 , 方凯 , 等 . 空心螺钉内固定治疗青壮年新鲜股骨颈骨折 [J]. 临床骨科杂志 , 2021 , 24 ( 5 ): 708 - 710 . doi: 10.3969/j.issn.1008-0287.2021.05.036 http://dx.doi.org/10.3969/j.issn.1008-0287.2021.05.036 .
党修亭 . PauwelsⅡ、Ⅲ型股骨颈骨折的内固定治疗进展 [J]. 中国微创外科杂志 , 2022 , 22 ( 11 ): 909 - 913 . doi: 10.3969/j.issn.1009-6604.2022.11.013 http://dx.doi.org/10.3969/j.issn.1009-6604.2022.11.013 .
Giordano V , Paes RP , Alves DD , et al . Stability of L-shaped and inverted triangle fixation assemblies in treating Pauwels type Ⅱ femoral neck fracture:a comparative mechanical study [J]. Eur J Orthop Surg Traumatol , 2018 , 28 ( 7 ): 1359 - 1367 . doi: 10.1007/s00590-018-2207-x http://dx.doi.org/10.1007/s00590-018-2207-x .
朱浩然 , 肖伟 , 向强 , 等 . 股骨颈Pauwels Ⅰ型骨折空心钉内固定治疗的有限元分析 [J]. 创伤外科杂志 , 2024 , 26 ( 10 ): 739 - 744 . doi: 10.3969/j.issn.1009-4237.2024.10.004 http://dx.doi.org/10.3969/j.issn.1009-4237.2024.10.004 .
王峰 . 空心钉治疗经颈型股骨颈骨折的基础、临床研究及优化 [D]. 南京 : 南京医科大学 , 2022 .
雷凯 . 高海拔地区人群股骨颈空心螺钉理想构型的三维有限元研究 [D]. 西宁 : 青海大学 , 2022 .
Augat P , Bliven E , Hackl S . Biomechanics of femoral neck fractures and implications for fixation [J]. J Orthop Trauma , 2019 , 33 ( Suppl 1 ): S27 - S32 . doi: 10.1097/BOT.0000000000001365 http://dx.doi.org/10.1097/BOT.0000000000001365 .
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