Investigation of Upper Body and Cervical Spine Kinematics of Post Mortem Human Subjects (PMHS) during Low-Speed, Rear-End Impacts

2009 ◽  
Author(s):  
Nicholas A. White ◽  
Paul C. Begeman ◽  
Warren N. Hardy ◽  
King H. Yang ◽  
Koshiro Ono ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Human Subjects ◽  
Upper Body ◽  
Post Mortem ◽  
Low Speed ◽  
Spine Kinematics

Effect of Head-Neck Position on Cervical Facet Stretch of Post Mortem Human Subjects during Low Speed Rear End Impacts

2004 ◽  
Author(s):  
Srini Sundararajan ◽  
Priya Prasad ◽  
Constantine K. Demetropoulos ◽  
Scott Tashman ◽  
Paul C. Begeman ◽  
...  
Keyword(s):  
Human Subjects ◽  
Post Mortem ◽  
Neck Position ◽  
Low Speed ◽  
Cervical Facet ◽  
Head Neck

Finite-Element-Based Transfer Equations: Post-Mortem Human Subjects versus Hybrid III Test Dummy in Blunt Impact

2014 ◽  
Vol 2 (1) ◽  
pp. 117-129 ◽  
Author(s):  
Raed E. El-jawahri ◽  
Tony R. Laituri ◽  
Agnes S. Kim ◽  
Stephen W. Rouhana ◽  
Para V. Weerappuli
Keyword(s):  
Finite Element ◽  
Human Subjects ◽  
Post Mortem ◽  
Blunt Impact ◽  
Transfer Equations ◽  
Hybrid Iii

P63. Evaluation of ProDisc-C During Low Speed, Rear-end Impact: A Full-body Post Mortem Human Subject Study

2007 ◽  
Vol 7 (5) ◽  
pp. 111S-112S
Author(s):  
Constantine Demetropoulos ◽  
Srinivasan Sundararajan ◽  
Sukhinder Bilkhu ◽  
Warren Hardy ◽  
King Yang ◽  
...  
Keyword(s):  
Human Subject ◽  
Post Mortem ◽  
Low Speed ◽  
Full Body

Cervical Spine Motion with Direct Laryngoscopy and Orotracheal Intubation

1996 ◽  
Vol 85 (1) ◽  
pp. 26-36 ◽  
Author(s):  
Paul D. Sawin ◽  
Michael M. Todd ◽  
Vincent C. Traynelis ◽  
Stella B. Farrell ◽  
Antoine Nader ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Direct Laryngoscopy ◽  
Sagittal Plane ◽  
Human Subjects ◽  
Orotracheal Intubation ◽  
Segmental Motion ◽  
Macintosh Blade ◽  
Spine Motion ◽  
Reproducible Method ◽  
Cervical Motion

Background Cervical spine kinetics during airway manipulation are poorly understood. This study was undertaken to quantify the extent and distribution of segmental cervical motion produced by direct laryngoscopy and orotracheal intubation in human subjects without cervical abnormality. Methods Ten patients without clinical or radiographic evidence of cervical spine abnormality underwent laryngoscopy using a #3 Macintosh blade while under general anesthesia and neuromuscular blockade. Cervical motion was recorded with continuous lateral fluoroscopy. The intubation sequence was divided into distinct stages and the corresponding fluoroscopic images were digitized. Segmental motion, occiput through C5, was calculated for each stage using the digitized data. Results During exposure and laryngoscope blade insertion, minimal displacement of the skull base and rostral cervical vertebral bodies was observed. Visualization of the larynx created superior rotation of the occiput and C1 in the sagittal plane, and mild inferior rotation of C3-C5. C2 maintained nearneutral posture. This pattern of displacement resulted in extension at each motion segment, with the most significant motion produced at the occipitoatlantal and atlantoaxial joints (mean = 6.8 degrees and 4.7 degrees, respectively). Intubation created slight additional superior rotation at the occiput and C1, without substantial alteration in the posture of C2-C5. After laryngoscope removal, position trended toward baseline at all levels, although exact neutral posture was not regained. Conclusions This investigation quantifies the behavior of the normal cervical spine during direct laryngoscopy with a Macintosh blade. With this maneuver, the vast majority of cervical motion is produced at the occipitoatlantal and atlantoaxial joints. The subaxial cervical segments (C2-C5) are displaced only minimally. This study establishes a highly reliable and reproducible method for analyzing cervical motion in real time.

Head/Neck Kinematic Response of Human Subjects in Low-Speed Rear-End Collisions

1997 ◽  
Author(s):  
Gunter P. Siegmund ◽  
David J. King ◽  
Jonathan M. Lawrence ◽  
Jeffrey B. Wheeler ◽  
John R. Brault ◽  
...  
Keyword(s):  
Human Subjects ◽  
Low Speed ◽  
Head Neck

A Comparison of Sacroiliac and Pubic Rami Fracture Occurrences in Oblique Side Impact Tests on Nine Post Mortem Human Subjects

2015 ◽  
Author(s):  
Philippe Petit ◽  
Xavier Trosseille ◽  
Mathieu Lebarbé ◽  
Pascal Baudrit ◽  
Pascal Potier ◽  
...  
Keyword(s):  
Human Subjects ◽  
Side Impact ◽  
Post Mortem ◽  
Pubic Rami ◽  
Impact Tests

Far Side Impact Injury Threshold Recommendations Based on 6 Paired WorldSID / Post Mortem Human Subjects Tests

2020 ◽  
Author(s):  
Philippe Petit ◽  
Xavier Trosseille ◽  
Jérome Uriot ◽  
David Poulard ◽  
Pascal Potier ◽  
...  
Keyword(s):  
Human Subjects ◽  
Side Impact ◽  
Post Mortem ◽  
Injury Threshold ◽  
Impact Injury

scholarly journals Continuous cervical spine kinematics during in vivo dynamic flexion-extension

2014 ◽  
Vol 14 (7) ◽  
pp. 1221-1227 ◽  
Author(s):  
William J. Anderst ◽  
William F. Donaldson ◽  
Joon Y. Lee ◽  
James D. Kang
Keyword(s):  
Cervical Spine ◽  
Spine Kinematics ◽  
Flexion Extension
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