In an effort to expand the understanding of head and neck injury dynamics in rollover type crashes, this investigation explores the influence of lateral bending postures and asymmetric compressive loads on the head and cervical spine. Drop testing of five male cadaver head-neck complexes was conducted with either an initial lateral bending posture onto a horizontal impact surface or with an initial neutral posture onto an obliquely oriented surface resulting in lateral bending. Five specimens were dropped from 0.45 and 0.53 m, with resulting impact speeds ranging from 2.9 to 3.25 m/s. Radiography of the specimens was performed pre- and post-testing to document any fractures. Three of the five specimens sustained compressive cervical vertebral fractures at lower neck loads ranging between 1518 N and 3472 N. Fracture patterns did suggest that the asymmetric postures and loading resulted in asymmetric fracture patterns. Overall compressive neck injury dynamics and tolerances appear similar to previous studies of purely sagittal plane dynamics based on these initial results. This study lays a foundation for quantifying the non-sagittal plane compressive response and tolerance of the cervical spine.
Skip Nav Destination
ASME 2009 International Mechanical Engineering Congress and Exposition
November 13–19, 2009
Lake Buena Vista, Florida, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4375-8
PROCEEDINGS PAPER
Exploring the Role of Lateral Bending Postures and Asymmetric Loading on Cervical Spine Compression Responses Available to Purchase
Daniel E. Toomey,
Daniel E. Toomey
Wayne State University, Detroit, MI
Search for other works by this author on:
Matthew J. Mason,
Matthew J. Mason
Wayne State University, Detroit, MI
Search for other works by this author on:
Warren N. Hardy,
Warren N. Hardy
Wayne State University, Detroit, MI
Search for other works by this author on:
King H. Yang,
King H. Yang
Wayne State University, Detroit, MI
Search for other works by this author on:
James M. Kopacz,
James M. Kopacz
Wayne State University, Detroit, MI
Search for other works by this author on:
Chris Van Ee
Chris Van Ee
Design Research Engineering LLC, Novi, MI
Search for other works by this author on:
Daniel E. Toomey
Wayne State University, Detroit, MI
Matthew J. Mason
Wayne State University, Detroit, MI
Warren N. Hardy
Wayne State University, Detroit, MI
King H. Yang
Wayne State University, Detroit, MI
James M. Kopacz
Wayne State University, Detroit, MI
Chris Van Ee
Design Research Engineering LLC, Novi, MI
Paper No:
IMECE2009-12911, pp. 375-382; 8 pages
Published Online:
July 8, 2010
Citation
Toomey, DE, Mason, MJ, Hardy, WN, Yang, KH, Kopacz, JM, & Van Ee, C. "Exploring the Role of Lateral Bending Postures and Asymmetric Loading on Cervical Spine Compression Responses." Proceedings of the ASME 2009 International Mechanical Engineering Congress and Exposition. Volume 2: Biomedical and Biotechnology Engineering. Lake Buena Vista, Florida, USA. November 13–19, 2009. pp. 375-382. ASME. https://doi.org/10.1115/IMECE2009-12911
Download citation file:
46
Views
Related Proceedings Papers
Related Articles
A New PMHS Model for Lumbar Spine Injuries During Vertical Acceleration
J Biomech Eng (August,2011)
Tension and Combined Tension-Extension Structural Response and Tolerance Properties of the Human Male Ligamentous Cervical Spine
J Biomech Eng (August,2009)
Effect of Spinal Level and Loading Conditions on the Production of Vertebral Burst Fractures in a Porcine Model
J Biomech Eng (September,2011)
Related Chapters
In Situ Observations of the Failure Mechanisms of Hydrided Zircaloy-4
Zirconium in the Nuclear Industry: 20th International Symposium
Recent Developments in J Ic Testing
Developments in Fracture Mechanics Test Methods Standardization
Fracture Testing with Surface Crack Specimens
Developments in Fracture Mechanics Test Methods Standardization