FEM assisted evaluation of PMMA and Ti6Al4V as materials for cranioplasty resulting mechanical behaviour and the neurocranial protection
作者： Alexander Tsouknidas , Stergios Maropoulos , Savvas Savvakis , Nikolaos Michailidis , None
关键词: Implant material 、 Finite element method 、 Titanium alloy 、 Materials science 、 Computer Aided Design 、 Implant 、 Cranioplasty 、 Biomedical engineering 、 Deflection (engineering) 、 Implant design
摘要: Recent advances in Computer Aided Design and Manufacturing techniques (CAD/CAM) have facilitated the rapid precise construction of customized implants used for craniofacial reconstruction. Data patients' trauma, acquired through Topographies (CT), provide sufficient information with regard to defect contour profile, thus allowing a thorough preoperative evaluation whilst ensuring excellent implant precision. During selection, however, suitable material specific mechanical aspects be considered. This investigation aims assess strength, shock resistance critical deflection cranial manufactured two commonly materials, Polymethylmethacrylate (PMMA) Ti6Al4V. Even though strength properties Ti-alloys are far superior those PMMA, there several that may act advantage e.g., it is known discontinuities elastic modulus adjoined parts (bone-implant) lead bone resorption loosening fixation over time.The design was same both cases direct comparison behavior various loads. Finite Element Methods (FEM) assisted procedures were employed, providing valuable insight neurocranial protection granted by these implants.
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sci-hub.se 参考文章(16)
Simon Goodwill, Steve Haake, Tom Allen, Experimental Validation of a Tennis Ball Finite-element Model for Different Temperatures (P22) Springer, Paris. pp. 125- 133 ,(2008) , 10.1007/978-2-287-99054-0_15
Koichi KOBAYASHI, Ken-ichi ODAGAWA, Makoto SAKAMOTO, Yuji TANABE, Accuracy of Single Plane X-Ray Image-Based Technique for Assessment of Knee Kinematics Journal of Biomechanical Science and Engineering. ,vol. 4, pp. 192- 200 ,(2009) , 10.1299/JBSE.4.192
Hyo Sub Yoon, J. Lawrence Katz, Ultrasonic wave propagation in human cortical bone--II. Measurements of elastic properties and microhardness. Journal of Biomechanics. ,vol. 9, pp. 459- 464 ,(1976) , 10.1016/0021-9290(76)90089-0
Donald T. Reilly, Albert H. Burstein, The elastic and ultimate properties of compact bone tissue Journal of Biomechanics. ,vol. 8, pp. 393- 405 ,(1975) , 10.1016/0021-9290(75)90075-5
S. Fujiwara, Y. Yanagida, Y. Mizoi, Impact-induced intracranial pressure caused by an accelerated motion of the head or by skull deformation; an experimental study using physical models of the head and neck, and ones of the skull. Forensic Science International. ,vol. 43, pp. 159- 169 ,(1989) , 10.1016/0379-0738(89)90132-1
Dieter H. Pahr, Philippe K. Zysset, From high-resolution CT data to finite element models: development of an integrated modular framework Computer Methods in Biomechanics and Biomedical Engineering. ,vol. 12, pp. 45- 57 ,(2009) , 10.1080/10255840802144105
Alida Mazzoli, Michele Germani, Roberto Raffaeli, Direct fabrication through electron beam melting technology of custom cranial implants designed in a PHANToM-based haptic environment Materials & Design. ,vol. 30, pp. 3186- 3192 ,(2009) , 10.1016/J.MATDES.2008.11.013
L Blankevoort, L Beimers, R Jonges, ER Valstar, GJM Tuijthof, The accuracy of a CT-based bone segmentation technique for measuring the range of motion of the joints in the ankle Journal of Foot and Ankle Research. ,vol. 1, pp. 1- 2 ,(2008) , 10.1186/1757-1146-1-S1-O34
Andrea Moreira-Gonzalez, Ian T. Jackson, Takeshi Miyawaki, Khaled Barakat, Vincent DiNick, Clinical Outcome in Cranioplasty: Critical Review in Long-Term Follow-Up Journal of Craniofacial Surgery. ,vol. 14, pp. 144- 153 ,(2003) , 10.1097/00001665-200303000-00003
Shengzheng Wang, Jie Yang, Simulating cranio-maxillofacial surgery based on mixed-element biomechanical modelling. Computer Methods in Biomechanics and Biomedical Engineering. ,vol. 13, pp. 419- 429 ,(2010) , 10.1080/10255840903317386