Commenced in January 2007
Paper Count: 31093
Simulating Dynamics of Thoracolumbar Spine Derived from Life MOD under Haptic Forces
Abstract:In this paper, the construction of a detailed spine model is presented using the LifeMOD Biomechanics Modeler. The detailed spine model is obtained by refining spine segments in cervical, thoracic and lumbar regions into individual vertebra segments, using bushing elements representing the intervertebral discs, and building various ligamentous soft tissues between vertebrae. In the sagittal plane of the spine, constant force will be applied from the posterior to anterior during simulation to determine dynamic characteristics of the spine. The force magnitude is gradually increased in subsequent simulations. Based on these recorded dynamic properties, graphs of displacement-force relationships will be established in terms of polynomial functions by using the least-squares method and imported into a haptic integrated graphic environment. A thoracolumbar spine model with complex geometry of vertebrae, which is digitized from a resin spine prototype, will be utilized in this environment. By using the haptic technique, surgeons can touch as well as apply forces to the spine model through haptic devices to observe the locomotion of the spine which is computed from the displacement-force relationship graphs. This current study provides a preliminary picture of our ongoing work towards building and simulating bio-fidelity scoliotic spine models in a haptic integrated graphic environment whose dynamic properties are obtained from LifeMOD. These models can be helpful for surgeons to examine kinematic behaviors of scoliotic spines and to propose possible surgical plans before spine correction operations.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1074869Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1572
 M. A. Adams, and P. Dolan, "Recent advances in lumbar spinal mechanics and their clinical significance," Clin. Biomech., vol. 10, no. 1, pp. 3-19, Jan. 1995.
 J. P. Callaghan, and S. M. McGill, "Low back joint loading and kinematics during standing and unsupported sitting," Ergonomics, vol. 44, no. 3, pp. 280-294, Feb. 2001.
 B. Vallfors, "Acute, subacute and chronic low back pain: clinical symptoms, absenteeism and working environment," Scand. J. Rehab. Med. Suppl., vol. 11, pp. 1-98, 1985.
 K. Luoma, H. Riihimaki, R. Luukkonen, R. Raininko, E. Viikari- Juntura, and A. Lamminen, "Low back pain in relation to lumbar disc degeneration," Spine, vol. 25, pp. 487-492, 2000.
 K. W. Lee, "CAD system for human-centered design," Computer-Aided Design & Applications, vol. 3, no. 5, pp. 615-628, 2006.
 H. S. Ahn, "A virtual model of the human cervical spine for physicsbased simulation and applications," Ph.D dissertation, University of Tennessee, May 2005.
 C. U. De Jongh, A. H. Basson, and C. Scheffer, "Dynamic simulation of cervical spine following single-level cervical disc replacement," in Proceedings of the 29th Annual International Conference of the IEEE EMBS, Lyon, France, 2007, pp. 4289-4292.
 S. M. Kim, I. C. Yang, and M. P. Lee, "Cervical spine injury analysis regarding frontal and side impacts of wheelchair occupant in vehicle by LifeMOD," in IFMBE Proceedings, 2007, vol. 14, no.4, pp. 2521-2524.
 F. Cavalloa, G. Megalia, S. Sinigagliaa, O. Toneta, P. Darioa, and A. Pietrabissa, "A step towards biomechanical analysis of surgeon-s gesture on Adams-LifeMOD platform," Int. J. CARS, vol. 2, no. 1, pp. 160-180, 2007.
 SensAble.PHANTOMTM. Available: http://www.sensable.com
 R. L. Williams, M. Srivastava, J. N. Howell, et al, "The virtual haptic back for palpatory training," in Proceedings of the 6th International Conference on Multimodal Interfaces, Pennsylvania, USA, 2004, pp. 191-197.
 P. Gorman, T. Krummel, R. Webster, M. Smith, and D. Hutchens, "A prototype haptic lumbar puncture simulator," Stud. Health Technol. Inform., vol. 70, pp. 106-109, 2000.
 G. Boschetti, G. Rosati, and A. Rossi, "A haptic system for robotic assisted spine surgery," IEEE Conference on Control Applications, pp. 19-24, Aug. 2005.
 Van C. Mow, and Wilson C. Hayes, Basic Orthopaedic Biomechanics. New York: Raven Press Ltd., 1991, ch. 8.
 M. H. Berkson, A. L. Nachemson, and A. B. Schultz, "Mechanical properties of human lumbar spine motion segments - Part 2: responses in compression and shear; influence of gross morphology," J. Biomech. Eng., vol. 101, pp. 52-57, 1979.
 K. M. McGlashen, J. A. Miller, A. B. Schultz and G. B. Andersson, "Load displacement behavior of the human lumbo-sacral joint," J. Orthop. Res., vol. 5, pp. 488-496, 1987.
 S. P. Moroney, A. B. Schultz, J. A. Miller, and G. B. Andersson, "Loaddisplacement properties of lower cervical spine motion segments," J. Biomech., vol. 21, pp. 769-779, 1988.
 M. M. Panjabi, R. A. Brand, and Jr. White AA, III, "Mechanical properties of the human thoracic spine as shown by three-dimensional load-displacement curves," J. Bone Joint Surg. Am., vol. 58, pp. 642- 652, 1976.
 A. B. Schultz, D. N. Warwick, M. H. Berkson, and A. L. Nachemson, "Mechanical properties of human lumbar spine motion segments. Part 1: Responses in flexion, extension, lateral bending and torsion," J. Biomech. Eng., vol. 101, pp. 46-52, 1979.
 N. Yoganandran, N. Kumaresan, and F. A. Pintar, "Biomechanics of the cervical spine. Part 2. Cervical spine soft tissue responses and biomechanical modeling," Clin. Biomech., vol. 16, pp. 1-27, 2001.