Topology Optimization of a Femoral Stem in Titanium and Carbon to Reduce Stress Shielding with the FEM Method

被引:13
作者
Ceddia, Mario [1 ]
Trentadue, Bartolomeo [1 ]
De Giosa, Giuseppe [2 ]
Solarino, Giuseppe [3 ]
机构
[1] Politecn Bari Univ, Dept Mech Math & Management, I-70125 Bari, Italy
[2] Univ Bari, Dept Translat Biomed & Neurosci, I-70125 Bari, Italy
[3] Univ Bari Aldo Moro, Fac Med & Surg, Dept Neurosci & Organs Sense, Orthopaed Unit, Policlin Piazza G Cesare 11, I-70124 Bari, Italy
关键词
hip prosthesis; finite element analysis; composite material; stress shielding; topological optimization; HIP; OSSEOINTEGRATION;
D O I
10.3390/jcs7070298
中图分类号
TB33 [复合材料];
学科分类号
摘要
Arthroplasty is commonly performed to treat advanced osteoarthritis or other degenerative joint conditions; however, it can also be considered for young patients with severe joint damage that significantly limits their functionality and quality of life. Young patients are still at risk of aseptic mobilization and bone resorption due to the phenomenon of stress shielding that causes an uneven distribution of tensions along the femoral contact surface prosthesis. This phenomenon can be limited by choosing the material of the prosthesis appropriately or by varying its stiffness, making sure that its mechanical behavior simulates that of the femur as much as possible. The aim of this study is to evaluate the mechanical strength of a prosthesis optimized both in shape and material and compare the results with a standard titanium prosthesis. Methods: Through three-dimensional modeling and the use of finite element method (FEM) software such as ANSYS, the mechanical behavior of traditional prosthesis and prosthesis optimized topologically respecting the ASTM F2996-13 standard. Results: With topological optimization, there is a stress reduction from 987 MPa to 810 MPa with a mass reduction of 30%. When carbon fiber is used, it is possible to further reduce stress to 509 MPa. Conclusions: The reduction in stress on the femoral stem allows an optimal distribution of the load on the cortical bone, thus decreasing the problem of stress shielding.
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页数:12
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共 39 条
[1]  
[Anonymous], 1998, INS WASH FDA WEEK, V4, P9
[2]   Reverse-total shoulder arthroplasty cost-effectiveness: A quality-adjusted life years comparison with total hip arthroplasty [J].
Bachman, Daniel ;
Nyland, John ;
Krupp, Ryan .
WORLD JOURNAL OF ORTHOPEDICS, 2016, 7 (02) :123-127
[3]   Comparative Characterization of Hot-Pressed Polyamide 11 and 12: Mechanical, Thermal and Durability Properties [J].
Bahrami, Mohsen ;
Abenojar, Juana ;
Angel Martinez, Miguel .
POLYMERS, 2021, 13 (20)
[4]   Dual Modification of Porous Ca-P/PLA Composites with APTES and Alendronate Improves Their Mechanical Strength and Cytobiocompatibility towards Human Osteoblasts [J].
Biernat, Monika ;
Szwed-Georgiou, Aleksandra ;
Rudnicka, Karolina ;
Plocinski, Przemyslaw ;
Pagacz, Joanna ;
Tymowicz-Grzyb, Paulina ;
Wozniak, Anna ;
Wlodarczyk, Marcin ;
Urbaniak, Mateusz M. ;
Krupa, Agnieszka ;
Rusek-Wala, Paulina ;
Karska, Natalia ;
Rodziewicz-Motowidlo, Sylwia .
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2022, 23 (22)
[5]   Osseointegration of titanium, titanium alloy and zirconia dental implants: current knowledge and open questions [J].
Bosshardt, Dieter D. ;
Chappuis, Vivianne ;
Buser, Daniel .
PERIODONTOLOGY 2000, 2017, 73 (01) :22-40
[6]   Experimental and numerical analysis of biomechanical effects in cervical spine positioning rotation manipulation [J].
Chang, Lijun ;
Wang, Huihao ;
Guo, Yingfu ;
Cai, Zhihua ;
Zhan, Hongsheng .
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING, 2022, 38 (12)
[7]   Using nonlinear finite element models to analyse stress distribution during subluxation and torque required for dislocation of newly developed total hip structure after prosthetic impingement [J].
Chi, Wei-Min ;
Lin, Chien-Chung ;
Ho, Ying-Jui ;
Lin, Hsiao-Che ;
Chen, Jian-Horng .
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, 2018, 56 (01) :37-47
[8]   The influence of composite bone plates in Vancouver femur B1 fracture fixation after post-operative, and healed bone stages: A finite element study [J].
Dhason, Raja ;
Roy, Sandipan ;
Datta, Shubhabrata .
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, 2022, 236 (09) :1288-1296
[9]   Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications [J].
Dorozhkin, Sergey V. .
JOURNAL OF FUNCTIONAL BIOMATERIALS, 2015, 6 (03) :708-832
[10]   Biomaterials for Tissue Engineering Applications and Current Updates in the Field: A Comprehensive Review [J].
Eldeeb, Alaa Emad ;
Salah, Salwa ;
Elkasabgy, Nermeen A. .
AAPS PHARMSCITECH, 2022, 23 (07)