Publication: Effect of cervical kyphotic deformity type on the motion characteristics and dynamic spinal cord compression
Submitted Date
Received Date
Accepted Date
Issued Date
2014-05-20
Copyright Date
Announcement No.
Application No.
Patent No.
Valid Date
Resource Type
Edition
Resource Version
Language
File Type
No. of Pages/File Size
ISBN
ISSN
15281159
03622436
03622436
eISSN
Scopus ID
WOS ID
Pubmed ID
arXiv ID
Call No.
Other identifier(s)
2-s2.0-84901461784
Journal Title
Volume
Issue
item.page.oaire.edition
Start Page
End Page
Access Rights
Access Status
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Physical Location
Bibliographic Citation
Spine. Vol.39, No.12 (2014), 932-938
Citation
Monchai Ruangchainikom, Michael D. Daubs, Akinobu Suzuki, Tetsuo Hayashi, Gil Weintraub, Christopher J. Lee, Hirokazu Inoue, Haijun Tian, Bayan Aghdasi, Trevor P. Scott, Kevin H. Phan, Areesak Chotivichit, Jeffrey C. Wang (2014). Effect of cervical kyphotic deformity type on the motion characteristics and dynamic spinal cord compression. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/34244.
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Effect of cervical kyphotic deformity type on the motion characteristics and dynamic spinal cord compression
Alternative Title(s)
Author's Affiliation
Author's E-mail
Editor(s)
Editor's Affiliation
Corresponding Author(s)
Creator(s)
Compiler
Advisor(s)
Illustrator(s)
Applicant(s)
Inventor(s)
Issuer
Assignee
Other Contributor(s)
Series
Has Part
Abstract
STUDY DESIGN.: Retrospective analysis of kinematic magnetic resonance images. OBJECTIVE.: To provide baseline data on the segmental angular and translational motion of the degenerated cervical spine by subtype of kyphotic cervical deformity and to elucidate the relationship between motion and degree of spinal cord compression. SUMMARY OF BACKGROUND DATA.: Kyphotic deformities of the cervical spine are relatively common and are classified as either global or focal. Nevertheless, the effects of kyphotic subtype on cervical segmental motion and degree of spinal cord compression are unknown. METHODS.: A total of 1171 symptomatic patients (618 females, 553 males) underwent cervical kinematic magnetic resonance imaging in the neutral, flexion, and extension positions. Cervical spines demonstrating kyphosis were included and classified into 3 groups: (1) "global kyphotic deformity" (C-type) (n = 54); (2) "sigmoid deformity" (S-type) with kyphotic upper and lordotic lower cervical segments (n = 29); and (3) "reverse sigmoid deformity" (R-type) with lordotic upper and kyphotic lower cervical segments (n = 39). Translational motion, angular motion, and degree of spinal cord compression were evaluated for each cervical level along with the changes associated with flexion and extension. RESULTS.: In the C-and R-types, angular motion with extension was increased in the upper cervical spine, where there was kyphosis; when compared with the S-type, in which there was lordosis in the upper segments. The results were opposite for flexion angular motion. R-type displayed more translational motion at C3-C4 and C5-C6. Degree of static spinal cord compression of R-type was higher than the others at C3-C4. The dynamic spinal cord compression increased in extension more than flexion in all subtypes. CONCLUSION.: Cervical spine studies that aim to investigate kyphotic deformities should make efforts to discern the different subtypes of kyphotic deformities to more accurately characterize and study the effects that the sagittal alignment has on the kinematics of the spine and the degree of spinal cord compression. Copyright © 2014 Lippincott Williams &Wilkins.