Universität zu Köln

Stein, G., Meyer, C., Ingenhoff, L., Bredow, J., Mueller, L. P., Eysel, P. and Schiffer, G. (2017). The biomechanics of hyperextension injuries of the subaxial cervical spine. Unfallchirurg, 120 (7). S. 590 - 594. NEW YORK: SPRINGER. ISSN 1433-044X

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Abstract

Hyperextension injuries of the subaxial cervical spine are potentially hazardous due to relevant destabilization. Depending on the clinical condition, neurologic or vascular damage may occur. Therefore an exact knowledge of the factors leading to destabilization is essential. In a biomechanical investigation, 10 fresh human cadaver cervical spine specimens were tested in a spine simulator. The tested segments were C4 to 7. In the first step, physiologic motion was investigated. Afterwards, the three steps of injury were dissection of the anterior longitudinal ligament, removal of the intervertebral disc/posterior longitudinal ligament, and dissection of the interspinous ligaments/ligamentum flavum. After each step, the mobility was determined. Regarding flexion and extension, an increase in motion of 8.36% after the first step, 90.45% after the second step, and 121.67% after the last step was observed. Testing of lateral bending showed an increase of mobility of 7.88 %/27.48 %/33.23 %; axial rotation increased by 2.87%/31.16 %/45.80 %. Isolated dissection of the anterior longitudinal ligament led to minor destabilization, whereas the intervertebral disc has to be seen as a major stabilizer of the cervical spine. Few finite-element studies showed comparable results. If a transfer to clinical use is undertaken, an isolated rupture of the anterior longitudinal ligament can be treated without surgical stabilization.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Stein, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Meyer, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ingenhoff, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bredow, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, L. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schiffer, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-225812
DOI:	10.1007/s00113-016-0167-3
Journal or Publication Title:	Unfallchirurg
Volume:	120
Number:	7
Page Range:	S. 590 - 594
Date:	2017
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1433-044X
Language:	German
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language IMAGING FINDINGS; IMPACT Multiple languages Emergency Medicine; Surgery Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22581