Biomechanical comparison of three internal fixation configurations for low transcondylar fractures of the distal humerus
文献类型：期刊论文
| 作者 | Zha, Yejun; Hua, Kehan; Xun Y(郇勇) ; Chen, Chen; Sun, Weitong; Ji, Shangwei; Xiao, Dan; Gong, Maoqi; Jiang, Xieyuan; Huan Y(郇勇)
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| 刊名 | INJURY INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
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| 出版日期 | 2023-02 |
| 卷号 | 54期号:2页码:362-369 |
| 关键词 | Low transcondylar fracture Distal humerus Biomechanical study Internal fixation |
| ISSN号 | 0020-1383 |
| DOI | 10.1016/j.injury.2022.10.025 |
| 英文摘要 | Background: We aimed to evaluate the biomechanical stiffness and strength of different internal fixa tion configurations and find suitable treatment strategies for low transcondylar fractures of the distal humerus.Methods and materials: Thirty 4th generation composite humeri were used to create low transcondy lar fracture models that were fixed by orthogonal and parallel double plates as well as posterolateral plate and medial screw (PPMS) configurations (n = 10 in each group) using an anatomical locking com pression plate screw system and fully threaded medial cortical screws. Posterior bending (maximum 50 N), axial loading (maximum 200 N) and internal rotation (maximum 10 Nmiddotm) were tested, in that order, for each specimen. Stiffness under different biomechanical settings among different configurations were compared. Another 18 sets of fracture models were created using these three configurations (n = 6 in each group) and the load to failure under axial loading among different configurations was compared.Results: Under posterior bending, the stiffness of parallel group was higher than orthogonal group (P < 0.001), and orthogonal group was higher than PPMS group (P < 0.001). Under axial loading, the stiff ness of parallel group was higher than orthogonal group (P = 0.001) and PPMS group (P < 0.001); however, the difference between orthogonal and PPMS group was not statistically significant (P > 0.05). Under inter nal rotation, the stiffness of parallel group was higher than orthogonal group (P = 0.044), and orthogonal group was higher than PPMS group (P = 0.029). In failure test under axial loading, the load to failure in the orthogonal group was lower than parallel group (P = 0.009) and PPMS group (P = 0.021), but the differ ence between parallel group and PPMS group was not statistically significant (P > 0.05). All specimens in orthogonal group demonstrated distal medial failure; most specimens had distal medial and trochlear failure in the parallel group; most specimens exhibited contact failure in the PPMS group.Conclusion: For treating low transcondylar fractures, the overall stiffness and strength of the parallel configuration were superior to those of the orthogonal and PPMS configurations. Nevertheless, the PPMS configuration can provide adequate stability and stiffness comparable to double plate configurations un der axial loading. Therefore, the PPMS construct may have certain clinical value.(c) 2022 Published by Elsevier Ltd. |
| 分类号 | 二类 |
| WOS研究方向 | Critical Care Medicine ; Emergency Medicine ; Orthopedics ; Surgery |
| 语种 | 英语 |
| WOS记录号 | WOS:000935268000001 |
| 资助机构 | Beijing Jishuitan Hospital Elite Young Scholar Programme [XKGG202101] ; Beijing Natural Science Foundation [L192049] ; Beijing Municipal Health Commission [BMHC2019 9] ; Beijing Jishuitan Hospital Nova Program [XKXX201604] ; Beijing Jishuitan Hospital Youth Found [QN 202105] |
| 其他责任者 | Jiang, XY (corresponding author), Beijing Jishuitan Hosp, Dept Orthoped Trauma, 31 Xinjiekou East St, Beijing 100035, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91806]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Beijing Jishuitan Hosp, Dept Orthoped Trauma, 31 Xinjiekou East St, Beijing 100035, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zha, Yejun,Hua, Kehan,Xun Y,et al. Biomechanical comparison of three internal fixation configurations for low transcondylar fractures of the distal humerus[J]. INJURY INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED,2023,54(2):362-369. |
| APA | Zha, Yejun.,Hua, Kehan.,郇勇.,Chen, Chen.,Sun, Weitong.,...&Huan Y.(2023).Biomechanical comparison of three internal fixation configurations for low transcondylar fractures of the distal humerus.INJURY INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED,54(2),362-369. |
| MLA | Zha, Yejun,et al."Biomechanical comparison of three internal fixation configurations for low transcondylar fractures of the distal humerus".INJURY INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED 54.2(2023):362-369. |
入库方式： OAI收割
来源：力学研究所
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