胸腰椎压缩性骨折经椎体后凸成形置入新型人工合成骨与骨水泥填充物的生物力学性能分析

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Abstract Objective To compare the biological effects of polymethyl mechacrylate(PMMA)and calcium phosphate cement(CPC)as percutaneous kyphoplasty (PKP) fillers in treating osteoporotic vertebral compressive fractures by 3D finite element analysis.Methods (1)The casting mechanicaI characters of PMMA and CPC were measured.(2) the 3D finite element models were developed by using finite element software and others.(3) PKP was simulated to evaluate the influence of L₁.Results (1) A 3D finite element model of human osteoporotic thoracolumber spine was developed.(2) Injection of PMMA or CPC all could stabilize vertebrae and restore the strength and stifness of vertebral body and lead to less increase the stress concentration at its posterior body and adjacent vertebral body.Conclusion The new artificial bone (GENEX) in the future can be used as an ideal filling material for the treatment of thoracolumbar vertebral compression fracture in young adults.

Key words： Thoraeolumbar compression fracture 3D finite element analysis Biomechanics Polymethyl mechacrylate artificial bone Genex

Received: 16 September 2015

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R318.08

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	Articles by authors
	WANG Jian
	LI Kai
	CHEN Bo
	WANG Mingfei
	TAN Fang
	and ZHOU Jie

Cite this article:

WANG Jian,LI Kai,CHEN Bo等. Casting mechanical characteristics of Genex and polymethyl mechacrylate aspercutaneous kyphoplasty fillers in treating unosteoporotic vertebral compressive fractures by 3D finite element analysis[J]. Med. J. Chin. Peop. Armed Poli. Forc., 2016, 27(7): 676-680.

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http://journal08.magtechjournal.com/Jwk_wjyx/EN/ OR http://journal08.magtechjournal.com/Jwk_wjyx/EN/Y2016/V27/I7/676

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