Development and Validation of a Three-Dimensional Finite Element Model of Lumbo-Pelvic-Femoral Complex

The study is to develop a three-dimensional finite element model to study the disease related to lumbo-pelvicfemoral complex. The CT images from the first lumbar vertebra to the upper third of femurs of a 25-years-old healthy male were obtained. Triangle mesh model was generated using these images by Simpleware. Then the whole solid model were set up after repair and optimization in Geomagic. The finite element model was established and analyzed using ABAQUS. The threedimensional finite element model of pelvis-lumbar-femur (3DFEMLPFC) had 106557 nodes and 435736 elements. The difference of anatomic shape between 3D-FEMLPFC and CT images was between -0.74 mm and 1.64 mm in absolute error, and between -1.39% and 3.16% in relative error. It was high similar with specimen in geometric shape. The stress distribution of 3D-FEMLPFC was the same as clinical observation and published literatures. It was valid and reasonable and could be used for biomechanical analysis. Keywordslumbar; pelvis; femur; lumbo-pelvic-femoral complex; finite element

[1]  M. Pope,et al.  Spinal biomechanics. , 1993, Journal of biomechanical engineering.

[2]  Yang An-li.  Experimental Biomechanical Analysis of the Normal Pelvis in Sitting and Standing Position , 2002 .

[3]  Yan Yu,et al.  [Development and validating of a three-dimensional finite element model of total human pelvis]. , 2007, Zhonghua yi xue za zhi.

[4]  A. Schache,et al.  The coordinated movement of the lumbo-pelvic-hip complex during running: a literature review. , 1999, Gait & posture.

[5]  Laurie Edge-Hughes,et al.  Hip and sacroiliac disease: selected disorders and their management with physical therapy. , 2007, Clinical techniques in small animal practice.

[6]  J. Weiss,et al.  Subject-specific finite element model of the pelvis: development, validation and sensitivity studies. , 2005, Journal of biomechanical engineering.

[7]  Michael J Yaszemski,et al.  Mechanical Effects of Partial Sacrectomy: When Is Reconstruction Necessary? , 2006, Clinical orthopaedics and related research.

[8]  D. Ku,et al.  Biomechanical comparison between fusion of two vertebrae and implantation of an artificial intervertebral disc. , 2006, Journal of biomechanics.

[9]  Vijay K. Goel,et al.  Residual Sagittal Motion After Lumbar Fusion: A Finite Element Analysis With Implications on Radiographic Flexion-Extension Criteria , 2007, Spine.

[10]  Zheng-Cheng Zhong,et al.  Finite element analysis of the lumbar spine with a new cage using a topology optimization method. , 2006, Medical engineering & physics.

[11]  J. Dawson,et al.  Analysis of the structural behavior of the pelvis during lateral impact using the finite element method. , 1999, Accident; analysis and prevention.

[12]  R. Huiskes,et al.  Development and validation of a three-dimensional finite element model of the pelvic bone. , 1995, Journal of biomechanical engineering.

[13]  F. Geisler,et al.  Comparison of Biomechanical Function at Ideal and Varied Surgical Placement for Two Lumbar Artificial Disc Implant Designs: Mobile-Core Versus Fixed-Core , 2007, Spine.

[14]  Tong Da-ke.  Three-dimensional finite element analysis of reconstructed pelvic after sacrectomy , 2008 .

[15]  Juhachi Oda,et al.  Reconstruction After Total Sacrectomy Using a New Instrumentation Technique: A Biomechanical Comparison , 2003, Spine.

[16]  Hiroshi Tsumura,et al.  Biomechanical study of load transfer of the pubic ramus due to pelvic inclination after hip joint surgery using a three-dimensional finite element model , 2004, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

[17]  M. Raimondi,et al.  Loss in mechanical contact of cementless acetabular prostheses due to post-operative weight bearing: a biomechanical model. , 2007, Medical engineering & physics.

[18]  A. Roychowdhury,et al.  Simulation of hip fracture in sideways fall using a 3D finite element model of pelvis-femur-soft tissue complex with simplified representation of whole body. , 2007, Medical engineering & physics.

[19]  Juhachi Oda,et al.  Biomechanical evaluation of reconstructed lumbosacral spine after total sacrectomy , 2002, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

[20]  M. Viceconti,et al.  Mathematical relationships between bone density and mechanical properties: a literature review. , 2008, Clinical biomechanics.

[21]  L. Freitag,et al.  Local optimization-based simplicial mesh untangling and improvement. , 2000 .

[22]  V. Goel,et al.  Biomechanics of two-level Charité artificial disc placement in comparison to fusion plus single-level disc placement combination. , 2006, The spine journal : official journal of the North American Spine Society.