Application of topology optimization to the tibial osteotomy fixation plates

Application of topology optimization to fixation plates is the main consideration of this paper. The interbody fusion plates are required to give mechanical support to tibia with minimally invasive surgical procedure. Topology optimization is used to obtain fixation plates with possible minimum material usage. Topology optimization is applied to three types of plates which are used in upper tibial osteotomy. Initial design of the plates are first numerically modelled and then investigated for stresses under possible highest load values. The results of the analysis indicated that the plates are very stiff even under high loads. Application of topology optimization to plates yielded minimized weight and material usage while keeping the plates still adequate for possible high load values. It was also revealed that up to 50% of mass could be saved by an optimal implant design.

[1]  Sung-Kie Youn,et al.  Shape optimization and its extension to topological design based on isogeometric analysis , 2010 .

[2]  H. P. Mlejnek,et al.  Some aspects of the genesis of structures , 1992 .

[3]  Giorgio Chiandussi,et al.  Topology optimisation of an automotive component without final volume constraint specification , 2004 .

[4]  M. Abolbashari,et al.  On various aspects of application of the evolutionary structural optimization method for 2D and 3D continuum structures , 2006 .

[5]  M. Bendsøe,et al.  Topology Optimization: "Theory, Methods, And Applications" , 2011 .

[6]  Li Guangyao,et al.  The topology optimization design for continuum structures based on the element free Galerkin method , 2010 .

[7]  John E. Renaud,et al.  Optimum design of an interbody implant for lumbar spine fixation , 2005, Adv. Eng. Softw..

[8]  N. Elmalı,et al.  Biomechanical evaluation of different fixation plates in medial opening upper tibial osteotomy. , 2007, The Knee.

[9]  Markus Kuster,et al.  Joint Load Considerations In Total Knee Replacement , 1997 .

[10]  Y. Xie,et al.  A simple evolutionary procedure for structural optimization , 1993 .

[11]  C.-Y. Lin,et al.  Artificial neural network based hole image interpretation techniques for integrated topology and shape optimization , 2005 .

[12]  José A. Simões,et al.  A model of bone adaptation as a topology optimization process with contact , 2012 .

[13]  M. Bendsøe,et al.  Generating optimal topologies in structural design using a homogenization method , 1988 .

[14]  David W. Wagner,et al.  Design-Optimization and Material Selection for a Proximal Radius Fracture-Fixation Implant , 2010 .

[15]  N. Elmalı,et al.  Proximal tibia medial open-wedge osteotomy using plates with wedges: early results in 58 cases , 2006, Knee Surgery, Sports Traumatology, Arthroscopy.

[16]  K. Tai,et al.  Structural topology design optimization using Genetic Algorithms with a bit-array representation , 2005 .

[17]  James K. Guest,et al.  Optimizing multifunctional materials: Design of microstructures for maximized stiffness and fluid permeability , 2006 .

[18]  Ren-Jye Yang,et al.  Optimal topology design using linear programming , 1994 .

[19]  Balaji Raghavan,et al.  Parallel Optimality Criteria-based Topology Optimization for minimum Compliance Design , 2005 .

[20]  O. Sigmund,et al.  Design and fabrication of compliant micromechanisms and structures with negative Poisson's ratio , 1996, Proceedings of Ninth International Workshop on Micro Electromechanical Systems.

[21]  D. G. T. Strange,et al.  Restoration of compressive loading properties of lumbar discs with a nucleus implant-a finite element analysis study. , 2010, The spine journal : official journal of the North American Spine Society.

[22]  A Gächter,et al.  Joint load considerations in total knee replacement. , 1997, The Journal of bone and joint surgery. British volume.

[23]  David W. Wagner,et al.  Design-optimization and material selection for a femoral-fracture fixation-plate implant , 2010 .

[24]  N. Olhoff,et al.  Reliability-based topology optimization , 2004 .

[25]  H. Chuah,et al.  Topology optimisation of spinal interbody cage for reducing stress shielding effect , 2010, Computer methods in biomechanics and biomedical engineering.

[26]  Paolo Ermanni,et al.  Dynamic CAD objects for structural optimization in preliminary aircraft design , 2006 .

[27]  Mica Grujicic,et al.  Computational investigation of the relative efficacies of nail‐ and plate‐type proximal femoral‐fracture fixation implants , 2011 .