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Biomechanical Assessment of Human Cervical Spine Ligaments
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Event:
Stapp Car Crash Conference
Language:
English
Abstract
There is an increasing need to accurately define the soft tissue components of the human cervical spine in order to develop and exercise mathematical analogs such as the finite element model. Currently, a paucity of data exists in the literature and researchers have constantly underscored the need to obtain accurate data on cervical spine ligaments. Consequently, the objective of the study was to determine the geometrical and biomechanical properties of these ligaments from the axis to the first thoracic level. A total of thirty-three human cadavers were used in the study. Geometrical data included the length and cross-sectional area measurements; and the biomechanical properties included the force, deflection, stiffness, energy, stress, strain, and Young's modulus of elasticity data.
Data were obtained for the following ligaments: anterior and posterior longitudinal ligaments, joint capsules, ligamentum flavum, and interspinous ligament. Cryomicrotomy techniques were used to determine the geometrical characteristic. The length data were obtained using sagittal images and area data were determined using axial images. The biomechanical tests involved conducting failure tensile tests at a quasistatic rate of 10 mm/sec using in situ principles (ligaments were not tested in isolation) and the data were analyzed and synthesized as follows. The force-deformation relationships for each ligament type and at each spinal level were normalized. The mean force-deformation curves were obtained and grouped into clinically relevant mid and lower cervical regions.
The anterior and posterior longitudinal ligaments responded with the highest length measurements in both regions of the spine. In contrast, the ligamentum flavum and joint capsules exhibited the highest area of cross-section. All ligaments demonstrated increasing cross-sectional areas in the lower cervical group compared to the mid-cervical group. Detailed force-deflection characteristics are provided for all the five types of ligaments in both groups. The stiffness parameters were higher in the mid-cervical region than in the lower cervical region for the anterior longitudinal ligament, interspinous ligament, and ligamentum flavum, while the reverse was true for the other ligaments. The energy was higher in the lower cervical region than in the mid-cervical region for the joint capsules, ligamentum flavum, interspinous ligament, and anterior longitudinal ligament. The lowest values of energy to failure were observed for the interspinous ligament followed by the posterior longitudinal ligament, ligamentum flavum, anterior longitudinal ligament, and joint capsules in both regions. The anterior and posterior longitudinal ligaments responded with the highest stress followed by the joint capsules, interspinous ligament, and ligamentum flavum. While the joint capsules and ligamentum flavum demonstrated large strain to failure, the anterior and posterior longitudinal ligaments responded with the least percentage of strain to failure. The Young's modulus of elasticity based on a bilinear fit for each ligament type at each of the two regions is given. These studies provide important fundamental data on the properties of human cervical spine ligaments.
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Authors
- Narayan Yoganandan - Department of Neurosurgery Medical College of Wisconsin and VA Medical Center
- Frank A. Pintar - Department of Neurosurgery Medical College of Wisconsin and VA Medical Center
- Srirangam Kumaresan - Department of Neurosurgery Medical College of Wisconsin and VA Medical Center
- Ali Elhagediab - Aerotek Corp.
Citation
Yoganandan, N., Pintar, F., Kumaresan, S., and Elhagediab, A., "Biomechanical Assessment of Human Cervical Spine Ligaments," SAE Technical Paper 983159, 1998, https://doi.org/10.4271/983159.Also In
References
- Chazal J Tanguy A Bourges M. Biomechanical properties of spinal ligaments and a histological study of the supraspinal ligament in traction J Biomech 18 167 176 1985
- de Jager M Sauren A Thunnissen J Wismans J. A global and a detailed mathematical model for head-neck dynamics Proc 40th Stapp Car Crash Conf Albuquerque, New Mexico 1996 269 281
- de Jager M Sauren A Thunnissen J Wismans J. A three-dimensional head-neck model: Validation for frontal and lateral impacts Proc 38th Stapp Car Crash Conf Ft. Lauderdale, FL 1994 93 109
- Dumas GA Beaudoin L Drouin G. In situ mechanical behavior of posterior spinal ligaments in the lumbar region. An in vitro study J Biomech 20 301 310 1987
- Khalil TB Lin TC Simulation of the Hybrid III dummy response to impact by nonlinear finite element analysis Proc 38th Stapp Car Crash Conf Ft. Lauderdale, FL 1994 325 343
- Kumaresan S Yoganandan N Pintar F. Age-specific pediatric cervical spine biomechanical responses: Three-dimensional nonlinear finite element models 41st Stapp Car Crash Conf Nov 12-14 Orlando, FL 1997 31 61
- Kumaresan S Yoganandan N Pintar F. Finite element analysis of anterior cervical spine interbody fusion Biomed. Mat. & Eng. 7 4 221 230 1997
- Kumaresan S Yoganandan N Pintar F Voo L Cusick J Larson S. Finite element modeling of cervical laminectomy with graded facetectomy J Spinal Disord 10 1 40 47 1997
- Kumaresan S Yoganandan N Pintar FA Finite element modeling approaches of human cervical spine facet joint capsule J Biomech 31 371 376 1998
- Kumaresan S Yoganandan N Pintar FA Methodology to quantify the uncovertebral joint in the human cervical spine J Musculoskeletal Research 1 2 1 9 1997
- Kumaresan S Yoganandan N Pintar FA Pediatric neck modeling using finite element analysis International J Crashworthiness 2 4 367 377 1998
- Myers BS Winkelstein B. Epidemiology, classification, mechanism, and tolerance of human cervical spine injuries Crit Rev Biomed Eng 23 5 307 409 1995
- Myklebust JB Pintar FA Yoganandan N Cusick JF Maiman DJ Myers T Sances A, Jr. Tensile strength of spinal ligaments Spine 13 5 526 531 1988
- Nitsche S Krabbel G Appel H Haug E. Validation of a finite-element-model of the human neck International IRCOBI Conference on the Biomechanics of Impact Dublin, Ireland 1996 107 108
- Panjabi MM Oxland TR Parks EH Quantitative anatomy of cervical ligaments -- Part II. middle and lower cervical spine J Spinal Disord 4 3 276 285 1991
- Pintar FA Yoganandan N Myers T Elhagediab A Sances A, Jr. Biomechanical properties of human lumbar spine ligaments J Biomech 25 11 1351 1356 1992
- Przybylski GJ Patel PR Carlin GJ Woo SLY Quantitative anthropometry of the subatlantal cervical longitudinal ligaments Spine 23 8 893 898 1998
- van der Horst MJ Thunnissen JG Happee R van Haaster RM Wismans JS The influence of muscle activity on head-neck response during impact Proc 41st Stapp Car Crash Conf Lake Buena Vista, FL 1997 487 507
- Yoganandan N Kumaresan S Voo L Pintar F. Finite element applications in human cervical spine modeling Spine 21 15 1824 1834 1996
- Yoganandan N Kumaresan S Voo L Pintar F. Finite element model of the human lower cervical spine J Biomech Eng 119 1 87 92 1997
- Yoganandan N Kumaresan S Voo L Pintar F Larson S. Finite element modeling of the C4-C6 cervical spine unit Med Eng Phy 18 7 569 574 1996
- Yoganandan N Myklebust JB Ray G Sances A, Jr. Mathematical and finite element analysis of spinal injuries CRC Review Biomed Eng 15 1 29 93 1987
- Yoganandan N Pintar FA Butler J Reinartz J Sances A, Jr Larson SJ Dynamic response of human cervical spine ligaments Spine 14 10 1102 1110 1989
- Yoganandan N Pintar FA Larson SJ Sances A, Jr Frontiers in Head and Neck Trauma: Clinical and Biomechanical Amsterdam, Netherlands IOS Press 740 1998
- Yoganandan N Sances A, Jr Maiman DJ Myklebust JB Pech P Larson SJ Experimental spinal injuries with vertical impact Spine 11 9 855 860 1986