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《国际骨科学杂志》[ISSN:1673-7083/CN:31-1952/R]

期数:

2019年04期

页码:

247-250

栏目:

实验研究

出版日期:

2019-08-09

文章信息/Info

Title:

Biomechanical analysis of three different fixations for Schatzker type Ⅳ tibial plateau fractures with posterolateral articular depression

作者:

庄健 翟启麟 王驭恺 周凯华 潘福根 罗从风

201799 上海, 复旦大学附属中山医院青浦分院骨科(庄健、翟启麟、周凯华、潘福根); 200233, 上海交通大学附属第六人民医院骨科(王驭恺、罗从风)

Author(s):

ZHUANG Jian¹;  ZHAI Qilin¹;  WANG Yukai²;  ZHOU Kaihua¹;  PAN Fugen¹;  LUO Congfeng².

Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University¹, Shanghai 201799, China; Department of Orthopaedic, the Sixth People's Hospital Affiliated to Shanghai Jiaotong University², Shanghai 200

关键词:

SchatzkerⅣ型胫骨平台骨折;  关节面塌陷;  固定方式;  生物力学研究

Keywords:

Schatzker type Ⅳ tibial plateau fractures;  Articular depression;  Internal fixation;  Biomechanical study

分类号:

-

DOI:

10.3969/j.issn.1673-7083.2019.04.013

文献标识码:

-

摘要:

目的 评估不同固定方式治疗后外侧关节面塌陷的SchatzkerⅣ型胫骨平台骨折的生物力学效果。方法 利用人工骨建立SchatzkerⅣ型胫骨平台骨折伴后外侧关节面塌陷的模型18例,将其均分为3组,分别模拟3种内固定方式固定:A组采用内侧钢板固定; B组采用内侧钢板加后侧支撑钢板固定; C组增加外侧骨窗,采用内外侧双钢板固定。通过力学实验机加载静态负荷,获得塌陷关节面与周围相连皮质断裂时以及垂直位移>3 mm时的载荷值。结果 塌陷关节面与相连皮质断裂时所加载的负荷为A组(1 715.0±52.1)N、B组(2 631.7±81.8)N、C组(2 763.3±51.6)N,3组间载荷存在差异(F=486.183,P=0.000),3组间两两比较差异均有统计学意义(P均<0.05)。塌陷关节面垂直位移>3 mm时的载荷为A组(2 360.0±71.0)N,B组(3 125.0±104.4)N,C组(3 418.3±81.3)N,3组间载荷存在差异(F=238.140,P=0.000),3组间两两比较差异均有统计学意义(P均<0.05)。结论 对于合并后外侧关节面塌陷的SchatzkerⅣ型胫骨平台骨折,增加外侧骨窗、内侧联合外侧钢板固定对于塌陷关节面的固定强度最高,内侧联合后侧钢板固定的强度次之,理论上两者均可承受行走时负荷; 单纯内侧钢板固定强度最低,但亦可满足非负重功能锻炼时的负荷要求。

Abstract:

Objective This study aimed to compare the biomechanical characteristics of different fixations for Schatzker type Ⅳ tibial plateau fractures with posterolateral articular depression.Methods Eighteen synthetic bones simulated the Schatzker type Ⅳ tibial pl

参考文献/References

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备注/Memo

备注/Memo:

基金项目: 上海市卫生和计划生育委员会科研课题青年项目(20164Y0195)
通信作者: 翟启麟 E-mail: zhaiql@163.com
Corresponding author: ZHAI Qilin E-mail: zhaiql@163.com

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更新日期/Last Update: 2019-08-09