Head, neck, and mandible dynamics generated by `whiplash'

Howard, Richard P.; Bowles, Alfred P.; Guzman, Herbert; Krenrich, Scott W.

doi:10.1016/s0001-4575(97)00091-2

Cited by 34 publications

(37 citation statements)

References 12 publications

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“…It is also possible that the theoretic model reported by Huang contained inaccurate assumptions regarding influence of masticatory muscle on mandibular movement. The results of the current study support the findings of Howard et al (20) who suggested that TMJ forces involved in whiplash trauma would be predominantly compression. This is opposed to the tension forces suggested by Weinberg and Lapointe (17).…”

Section: Discussionsupporting

confidence: 91%

Mandibular kinematics associated with simulated low‐velocity rear‐end impacts

Hernández¹,

Fyfe²,

Heo³

et al. 2006

J of Oral Rehabilitation

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Rear-end-impact motor vehicle accidents may result in cervical and temporomandibular-related pain complaints. Head kimematics in simulated low-impact rear-end impacts have been investigated but mandibular kinematics have not been described. Thirty healthy adult subjects underwent three impacts (4.5 m s(-2) expected, 10.0 m s(-2) unexpected, and 10.0 m s(-2) expected). Onset time and peak magnitude of angular head acceleration, angular mandibular acceleration and angular mandibular displacement were measured. Significant mandibular opening acceleration was not identified with rearward head rotation. The peak magnitude of mandibular closing angular acceleration approximately doubled with increased impact magnitude. No differences in peak angular mandibular acceleration regarding expectation were identified. Gender differences were detected in the fast unexpected impact. The peak time for the angular mandibular acceleration (mandibular closure) was approximately 84-120 ms later than peak rearward angular head acceleration for all impacts. Onset and peak times for angular mandibular acceleration (mandibular closure) were similar to the onset and peak times for forward head acceleration. There was also a positive correlation between the magnitude of the forward angular acceleration of the head and angular acceleration of the mandible for the slow (0.65, P = 0.015) and fast expected (0.844, P = 0.001) impacts. The average angular mandibular angular displacement (mandibular closure) was approximately 6 degrees . The hyperextension hypothesis regarding mechanism of temporomandibular joint injury in low-impact rear-end collisions cannot be supported.

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Section: Discussionsupporting

confidence: 91%

Mandibular kinematics associated with simulated low‐velocity rear‐end impacts

Hernández¹,

Fyfe²,

Heo³

et al. 2006

J of Oral Rehabilitation

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show abstract

“…To address this limitation, researchers have reported methods for calculating loads and moments at the upper cervical spine in adult human volunteers and post mortem human subjects (PMHS) by transforming accelerations measured externally on the head to the center of gravity of the head using standard dynamics equations (Mertz and Patrick, 1967;Ewing and Thomas, 1973;Sundararajan et al, 2004;Funk et al, 2009). Using these approaches, adult head and neck forces and moments have been reported in low-speed rear impacts (Howard et al, 1998;Ono et al, 1997;Vijayakumar et al, 2006) and frontal loading at various speeds (Lopez-Valdes et al, 2010a;Wismans et al, 1986). However, similar studies involving pediatric subjects are completely absent from the literature.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of the cervical spine in pediatric and adult volunteers during low speed frontal impacts

Seacrist

Arbogast

Maltese

et al. 2012

Journal of Biomechanics

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“…Darüber hinaus werden fasziale Retraktionen der Halsfaszien (mit Verbindung zu den Organfaszien) als Ursache für Irritationen der HWS-Region geschildert [9,20].…”

Section: Studieunclassified

Osteopathie im Rahmen der Unfall- und Wiederherstellungstherapie

D.O.Mrod¹

2006

Trauma Berufskrankh

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Head, neck, and mandible dynamics generated by `whiplash'

Cited by 34 publications

References 12 publications

Mandibular kinematics associated with simulated low‐velocity rear‐end impacts

Mandibular kinematics associated with simulated low‐velocity rear‐end impacts

Kinetics of the cervical spine in pediatric and adult volunteers during low speed frontal impacts

Osteopathie im Rahmen der Unfall- und Wiederherstellungstherapie

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