中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (26): 3903-3908.doi: 10.3969/j.issn.2095-4344.2016.26.016

• 数字化骨科 digital orthopedics • 上一篇    下一篇

钢板前置位及上置位固定锁骨骨折的有限元分析

刘 栋1,王建明2,张德刚1,张 锴1,杜刚强1   

  1. 滨州医学院附属医院,1创伤骨科,2关节外科,山东省滨州市 256600
  • 修回日期:2016-04-29 出版日期:2016-06-24 发布日期:2016-06-24
  • 通讯作者: 王建明,主治医师,滨州医学院附属医院关节外科,山东省滨州市 256600
  • 作者简介:刘栋,男,1979年生,山东省淄博市人,汉族,2003年滨州医学院毕业,主治医师,主要从事创伤、骨质疏松骨折、骨不连方面的研究。

Finite element analysis of clavicle fracture with superior and anterior plate fixation

Liu Dong1, Wang Jian-ming2, Zhang De-gang1, Zhang Kai1, Du Gang-qiang1   

  1. 1Department of Orthopedic Trauma, 2Department of Joint Surgery, Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong Province, China
  • Revised:2016-04-29 Online:2016-06-24 Published:2016-06-24
  • Contact: Wang Jian-ming, Attending physician, Department of Joint Surgery, Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong Province, China
  • About author:Liu Dong, Attending physician, Department of Orthopedic Trauma, Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong Province, China

摘要:

文章快速阅读:

 
 
文题释义:
应力遮挡:在骨折的手术治疗中,固定物要切实可靠,应力遮挡在骨折后期对于骨折的恢复会产生不良影响,使骨折愈合过程中骨痂的生长缺少应力作用而导致骨重建的负平衡作用,从而导致骨结构紊乱、骨质疏松。
锁骨骨折并发症:包括感染、不愈合、畸形愈合、疼痛、肩关节活动受限、排异反应和局部触痛等,选择合适的修复方式以及合适的固定位置可以减少术后并发症的发生。
 
摘要
背景:不少学者对锁骨中段骨折钢板固定进行了生物力学研究,但有关钢板放置位置的研究不多。
目的:采用三维有限元模型观察钢板前置位及上置位固定锁骨骨折的生物力学特点。
方法:建立锁骨骨折重建钢板前置位固定和上置位固定的三维有限元模型,分析评价钢板上置位和前置位固定后的应力情况,在压缩、扭转和三点弯曲状况下观察钢板固定锁骨骨折的最大应力和位移情况。
结果与结论:①在压缩状况下:钢板螺钉上置位组外固定的最大应力和骨折最大位移与钢板螺钉前置位组基本相同(P > 0.05);②顺时扭转状况下:钢板固定锁骨骨折上置位组的外固定最大应力和骨折最大位移均小于前置位组(P < 0.05);③逆时扭转状况下:钢板固定锁骨骨折上置位组的外固定最大应力、骨折最大位移与前置位组基本一致(P > 0.05);④三点弯曲状况下:钢板固定锁骨骨折上置位组的外固定最大应力与前置位组基本相同(P > 0.05);钢板固定锁骨骨折上置位组的骨折最大位移大于前置位组(P < 0.05);⑤结果表明:锁骨骨折重建钢板上置位固定比前置位固定更具优势。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

ORCID:
0000-0001-9988-3744(王建明)

关键词: 骨科植入物, 数字化骨科, 锁骨骨折, 钢板, 内固定, 前置位, 上置位, 有限元分析

Abstract:

BACKGROUND: Many scholars researched the biomechanics of middle clavicle fracture plate fixation, but little researched the plate position.

OBJECTIVE: To observe the biomechanical characteristics of anterior and superior plates for clavicle fracture with three-dimensional finite element models. 
METHODS: Three-dimensional finite element models of clavicle fracture with anterior and superior plates were established. The stress after anterior and superior plate fixation was analyzed. The maximum stress and displacement of plate fixation for clavicular fracture were observed under compression, torsion and three-point bending. 

RESULTS AND CONCLUSION: (1) In the compressed condition, the maximum stress and maximum fracture displacement were similar between the superior and anterior plate fixation (P > 0.05). (2) Under clockwise twist condition, the maximum stress and maximum fracture displacement were smaller in the superior plate fixation group than in the anterior plate fixation group (P < 0.05). (3) Under counterclockwise twist condition, the maximum stress and maximum fracture displacement were similar between the anterior and superior plate fixation groups (P > 0.05). (4) Under three-point bending condition, the maximum stress was similar between the superior and anterior plate fixation groups (P > 0.05). The maximum fracture displacement was bigger in the superior plate fixation group than in the anterior plate fixation group (P < 0.05). (5) These findings suggest that superior fixation of clavicle fracture reconstruction plate has more advantages than the anterior plate fixation.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Clavicle, Fractures, Bone, Internal Fixators, Finite Element Analysis, Tissue Engineering

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