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Injuries to the Cervical Spine Caused by a Distributed Frontal Load to the Chest
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Abstract
Unembalmed cadavers were exposed to −Gx acceleration while restrained by applying a frontal load to the chest. A pre-deployed non-venting production air cushion mounted on a non-collapsible horizontal steering column provided the distributed load. The sled deceleration pulse was determined from a series of Part 572 dummy runs in which the HIC, chest acceleration and knee loads were at but not in excess of the limits specified in the current FMVSS 208.
A total of six cadavers have been tested. In three of the runs, there were severe neck injuries of the type which have not been observed previously in belted tests. They include complete severance of the cord, complete avulsion of the odontoid process, atlanto-occipital separation with ring fracture. This study does not claim to establish the injury potential of air bags but uses the air bag to provide a uniform restraining load to the chest to investigate the mechanism of neck injuries. High neck loads were encountered in this rode of impact in which the head and neck kinematics were different from those of belted cadaveric subjects. Cadaveric and dummy neck loads were also different. The proposed neck fracture load is 6.2 kN (1,400 lb). This is the resultant neck load.
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Authors
Citation
Cheng, R., Yang, K., Levine, R., King, A. et al., "Injuries to the Cervical Spine Caused by a Distributed Frontal Load to the Chest," SAE Technical Paper 821155, 1982, https://doi.org/10.4271/821155.Also In
References
- Patrick, L. M. Bohlin, N. Andersson, A. Three Point Harness Accident and Laboratory Data Comparison. Proc. 18th Stapp Car Crash Conf SAE Paper # 741181 201 282 1974
- Hartemann, F. Thomas, C. Henry, C. Foret-Bruno, J. Y. Faveyon, G. Tarriere, C. Got, C. Patel, A. Belted or Not Belted: The Only Difference Between Two Matched Samples of 200 Car Occupants Proc. 21st Stapp Car Crash Conf. 97 150 1977
- Rattenbury, S. J. Gloyns, P. F. Hayes, R. R. M. Griffiths, D. K. The Biomechanical Limits of Seat Belt Protection Proc. 23rd AAAM Conf. 162 176 1979
- Dalmotas, D. J. Mechanisms of Injury to Vehicle Occupants Restrained by Three-Point Seat Belts Proc. 24th Stapp Car Crash Conf. 441 476 1980
- Huelke, D. F. Mendelsohn, R. A. States, J. D. Melvin, J. W. Cervical Fractures and Fracture-Dislocations Sustained Without Head Impact J Trauma 18 (7) 533 538 1978
- Schmidt, G. Kallieris, D. Barz, J. Mattern, R. Results of 49 Cadaver Tests Simulating Frontal Collision of Front Seat Passengers Proc. 18th Stapp Car Crash Conf. 283 291 1974
- Schmidt, G. Kallieris, D. Barz, J. Mattern. R. Klaiber, J. Neck and Thorax Tolerance Levels of Belt-Protected Occupants in Head-On Collisions Proc. 19th Stapp Car Crash Conf. 225 257 1975
- Cromack, J. R. Ziperman, H. H. Three-Point Belt Induced Injuries: A Comparison Between Laboratory Surrogates and Real World Accident Victims Proc. 19th Stapp Car Crash Conf. 1 24 1975
- Patrick, L. M. Levine, R. S. Injury to Unembalmed Belted Cadavers in Simulated Collisions Proc. 19th Stapp Car Crash Conf. 79 115 1975
- Levine, R. S. Patrick, L. M. Begeman, P. C. King. A. I. Effect of Quadriceps Function on Submarining Proc. 22nd AAAM Conf. 319 329 1978
- Walsh, M. J. Kelleher, B. J. Evaluation of Air Cushion and Belt Restraint Systems in Identical Crash Situations Using Dummies and Cadavers Proc. 22nd Stapp Car Crash Conf. 295 339 1978
- Thomas, D. J. Jessop, M. E. Exprerimental Head and Neck Injury Impact Injury of the Head and Spine Ewing, C. L. et al Charles C. Thomas Springfield. IL In Press
- Moffatt, E. A. Siegel, A. W. Huelke, D. F. Nahum, A. M. The Biomechanics of Automotive Cervical Fractures Proc. 22nd AAAM Conf. 151 168 1978
- Nyquist, G. W. Begeman, P. C. King, A. I. Mertz, H. J. Correlation of Field Injuries and GH Hybrid III Dummy Responses for Lap-Shoulder Belt Restraint Journal of Biomechanical Engineering 102 103 109 1980
- Mertz, H. J. Jr. The Kinematics and Kinetics of Whiplash Wayne State University Detroit, Michigan 1967