| 胫骨平台塌陷性骨折克氏针网状固定的生物力学评价 |
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投稿时间：2013-06-06
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| 作者 | Author | 单位 | Address | E-Mail |
| 陈朝祥 |
CHEN Zhao-xiang |
南华大学附属南华医院关节运动科, 湖南 衡阳 421002 |
Department of Joint Movement, the Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, China |
chenzhaoxiang415@163.com |
| 张卫 |
ZHANG Wei |
南华大学附属南华医院关节运动科, 湖南 衡阳 421002 |
Department of Joint Movement, the Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, China |
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| 贺洪辉 |
HE Hong-hui |
南华大学附属南华医院关节运动科, 湖南 衡阳 421002 |
Department of Joint Movement, the Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, China |
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| 刘鸣江 |
LIU Ming-jiang |
南华大学附属南华医院关节运动科, 湖南 衡阳 421002 |
Department of Joint Movement, the Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, China |
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| 曾德辉 |
ZENG De-hui |
南华大学附属南华医院关节运动科, 湖南 衡阳 421002 |
Department of Joint Movement, the Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, China |
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| 期刊信息：《中国骨伤》2014年，第27卷，第5期，第418-421页 |
| DOI：10.3969/j.issn.1003-0034.2014.05.016 |
| 基金项目: |
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中文摘要:
目的：评价采用克氏针束网状支撑固定治疗胫骨平台塌陷性骨折的生物力学性能。
方法：在自行设计的骨折模型上，分别用8枚1.5 mm克氏针网状固定和2枚3.5 mm皮质骨螺钉固定，分别进行面压缩试验和点压缩试验，对这两种固定方式在最大抗压缩力、固定强度等方面进行生物力学评价。
结果：面压缩试验中，平均最大抗压缩力，螺钉固定为（1 925.31±444.26） N，克氏针束网状固定为（1 609.62±277.72） N；平均最大固定强度，螺钉固定为（2.28±0.53） N/mm2，克氏针束网状固定为（1.90±0.33） N/mm2，两种固定方式生物力学性能接近（P>0.05）；在点压缩试验组中平均最大抗压缩力，螺钉固定为（411.13±233.88） N，克氏针束网状固定为（1 105.58±290.66） N；平均最大固定强度，螺钉固定为（2.66±1.52） N/mm2，克氏针束网状固定为（7.18±1.89） N/mm2，网状固定明显具有生物力学优势（P<0.01）.
结论：克氏针网状支撑固定胫骨平台骨折，对骨折施行生物学固定，固定牢靠。 |
| 【关键词】胫骨平台 塌陷骨折 骨折固定术，内 生物力学 |
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| Biomechanical study on a net-fixation of Kirschner wire in treating depressed tibial plateau fractures |
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ABSTRACT
Objective: To evaluate the biomechanical properties of tibial plateau depressed fracture fixed with a net-fixation of Kirschner wires.
Methods: Twenty homemade fracture models were fixed with eight 1.5 mm Kirschner wires in a net-fixation;20 homemade fracture models were fixed with two 3.5 mm cortical screws. Plane-compressed and dot-compressed test were made on each 10 models of the two groups. The maximal force of anti-ompress and stiffness were measured and evaluated.
Results: In plane-compressed test,mean maximal force of anti-compress and stiffness for screw fixation was(1 925.31±444.26) N and(2.28±0.53) N/mm2,respectively,for net-fixation was(1 609.62±277.72) N and(1.90±0.33) N/mm2,respectively. There was no statistical difference between the two fixation methods(P>0.05). In dot-compressed test,mean maximal force of anti-compress and stiffness for screw fixation was(411.13±233.88) N and(2.66±1.52) N/mm2,respectively,for net-fixation was (1 105.58±290.66) N and (7.18±1.89) N/mm2,respectively,the net-fixation was better than that of the screw fixation(P<0.01).
Conclusion: Treatment of tibial plateau depressed fracture with a net-fixation of Kirschner wires is a biological fixation and is a reliably method. |
| KEY WORDS Tibial plateau Depressed fracture Fracture fixation,internal Biomechanics |
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| 引用本文，请按以下格式著录参考文献： |
| 中文格式: | 陈朝祥,张卫,贺洪辉,刘鸣江,曾德辉.胫骨平台塌陷性骨折克氏针网状固定的生物力学评价[J].中国骨伤,2014,27(5):418~421 |
| 英文格式: | CHEN Zhao-xiang,ZHANG Wei,HE Hong-hui,LIU Ming-jiang,ZENG De-hui.Biomechanical study on a net-fixation of Kirschner wire in treating depressed tibial plateau fractures[J].zhongguo gu shang / China J Orthop Trauma ,2014,27(5):418~421 |
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