Biomechanical properties of spinal ligaments and a histological study of the supraspinal ligament in traction

Chazal, J.; Tanguy, Arnaud; Bourgès, M; Gaurel, G.; Escande, G; Guillot, Malka; Vanneuville, G

doi:10.1016/0021-9290(85)90202-7

Cited by 309 publications

(188 citation statements)

References 6 publications

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“…The Coulomb elements on the left model the preconditioning effect as identical successive tests produce different results, but slowly converge until the differences vanish after preconditioning. hysteresis (Chazal et al, 1985). When a typical ligament is loaded under tension to failure, the forceelongation curve exhibits a sigmoidal shape up to the ultimate load and the curve has four distinct regions: toe region, linear phase, traumatic phase, and post traumatic phase, as seen in Figure 3-9.…”

Section: Figure 3-7: Loading Of a Ligament Mechanically Modeled By Inmentioning

confidence: 99%

“…A number of studies have been conducted on isolated cervical spine ligaments to identify tensile behaviours ranging from quasi-static strain rates Chazal et al, 1985;Przybylski et al, 1996;Yoganandan et al, 1998;Yoganandan et al, 2000) to high strain rates Ivancic et al, 2007;Bass et al, 2007;Shim et al, 2005). This data has provided an excellent background on cervical spine ligament behavior.…”

Section: Motivation For Researchmentioning

confidence: 99%

“…This data has provided an excellent background on cervical spine ligament behavior. However, it has been shown that mechanical properties of the spine deteriorate with increasing age Cowin et al, 2007;Neumann et al, 1992;Iida et al, 2002;Tkaczuk, 1968;Nachemson et al, 1968), and existing ligament data has only been reported from cadaver specimens ranging from the youngest of 55 ±5 years (Chazal et al, 1985) to the oldest of 81 ±11 years (Ivancic et al, 2007).…”

Section: Motivation For Researchmentioning

confidence: 99%

“…When a ligament is in a relaxed state, the collagen bundles are organized in a crimped arrangement (Figure 3-1) and accompanied by elastic fibres (Chazal et al, 1985). When the ligament is loaded, the collagen bundles stretch and lose the crimped pattern.…”

Section: Chapter 3 Tissue Mechanicsmentioning

confidence: 99%

“…The elastic substance helps to return collagen fibers to the crimped pattern after loading. When a ligament begins to fail, gaps can be seen between the retracted bundles of collagen fibres (Chazal et al, 1985).…”

Section: Chapter 3 Tissue Mechanicsmentioning

confidence: 99%

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Strain rate dependent properties of younger human cervical spine ligaments

Mattucci

Moulton

Chandrashekar

et al. 2012

Journal of the Mechanical Behavior of Biomedical Materials

118

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Section: Figure 3-7: Loading Of a Ligament Mechanically Modeled By Inmentioning

confidence: 99%

Section: Motivation For Researchmentioning

confidence: 99%

Section: Motivation For Researchmentioning

confidence: 99%

Section: Chapter 3 Tissue Mechanicsmentioning

confidence: 99%

Section: Chapter 3 Tissue Mechanicsmentioning

confidence: 99%

See 3 more Smart Citations

Strain rate dependent properties of younger human cervical spine ligaments

Mattucci

Moulton

Chandrashekar

et al. 2012

Journal of the Mechanical Behavior of Biomedical Materials

118

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The relationship between lower neck shear force and facet joint kinematics during automotive rear impacts

Stemper¹,

Yoganandan²,

Pintar³

et al. 2011

Clinical Anatomy

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A primary goal of biomechanical safety research is the definition of localized injury thresholds in terms of quantities that are repeatable and easily measureable during experimentation. Recent biomechanical experimentation using human cadavers has highlighted the role of lower cervical facet joints in the injury mechanism resulting from low-speed automotive rear impacts. The present study was conducted to correlate lower neck forces and moments with facet joint motions during simulated rear impacts in an effort to define facet joint injury tolerance thresholds that can be used to assess automobile safety. Four male and four female intact head-neck complexes were obtained from cadaveric specimens and subjected to simulated automotive rear impacts using a pendulum-minisled device. Cervical spine segmental angulations and localized facet joint kinematics were correlated to shear and axial forces, and bending moments at the cervico-thoracic junction using linear regression. R(2) coefficients indicated that spinal kinematics correlated well with lower neck shear force and bending moment. Correlation slope was steeper in female specimens, indicating greater facet joint motions for a given loading magnitude. This study demonstrated that lower neck loads can be used to predict lower cervical facet joint kinematics during automotive rear impacts. Higher correlation slope in female specimens corresponds to higher injury susceptibility in that population. Although lower neck shear force and bending moment demonstrated adequate correlation with lower cervical facet joint motions, shear force is likely the better predictor due to similarity in the timing of peak magnitudes with regard to maximum facet joint motions.

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Patient‐specific computational biomechanics for simulating adolescent scoliosis surgery: Predicted vs clinical correction for a preliminary series of six patients

Little

Adam

2010

Numer Methods Biomed Eng

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SUMMARYScoliosis is a spinal deformity that requires surgical correction in progressive cases. In order to optimize surgery outcomes, patient-specific finite element models are being developed by our group. In this paper, a single rod anterior correction procedure is simulated for a group of six scoliosis patients. For each patient, personalized model geometry was derived from low-dose CT scans, and clinically measured intra-operative corrective forces were applied. However, tissue material properties were not patient-specific, being derived from existing literature. Clinically, the patient group had a mean initial Cobb angle of 47.3 • , which was corrected to 17.5 • after surgery. The mean simulated post-operative Cobb angle for the group was 18.1 • . Although this represents good agreement between clinical and simulated corrections, the discrepancy between clinical and simulated Cobb angle for individual patients varied between −10.3 and +8.6 • , with only three of the six patients matching the clinical result to within accepted Cobb measurement error of ±5 • . The results of this study suggest that spinal tissue material properties play an important role in governing the correction obtained during surgery, and that patient-specific modelling approaches must address the question of how to prescribe patient-specific soft tissue properties for spine surgery simulation.

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Biomechanical properties of spinal ligaments and a histological study of the supraspinal ligament in traction

Cited by 309 publications

References 6 publications

Strain rate dependent properties of younger human cervical spine ligaments

Strain rate dependent properties of younger human cervical spine ligaments

The relationship between lower neck shear force and facet joint kinematics during automotive rear impacts

Patient‐specific computational biomechanics for simulating adolescent scoliosis surgery: Predicted vs clinical correction for a preliminary series of six patients

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