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The Comprehensive Biomechanics and Load-Sharing of Semirigid PEEK and Semirigid Posterior Dynamic Stabilization Systems
Joint Authors
Angara, Raghavendra
Sengupta, Dilip K.
Khalil, Saif
McAfee, Paul C.
Bucklen, Brandon
Nichols, Jeff
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-04
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Alternatives to conventional rigid fusion have been proposed for several conditions related to degenerative disc disease when nonoperative treatment has failed.
Semirigid fixation, in the form of dynamic stabilization or PEEK rods, is expected to provide compression under loading as well as an intermediate level of stabilization.
This study systematically examines both the load-sharing characteristics and kinematics of these two devices compared to the standard of internal rigid fixators.
Load-sharing was studied by using digital pressure films inserted between an artificially machined disc and two loading fixtures.
Rigid rods, PEEK rods, and the dynamic stabilization system were inserted posteriorly for stabilization.
The kinematics were quantified on ten, human, cadaver lumbosacral spines (L3-S1) which were tested under a pure bending moment, in flexion-extension, lateral bending, and axial rotation.
The magnitude of load transmission through the anterior column was significantly greater with the dynamic device compared to PEEK rods and rigid rods.
The contact pressures were distributed more uniformly, throughout the disc with the dynamic stabilization devices, and had smaller maximum point-loading (pressures) on any particular point within the disc.
Kinematically, the motion was reduced by both semirigid devices similarly in all directions, with slight rigidity imparted by a lateral interbody device.
American Psychological Association (APA)
Sengupta, Dilip K.& Bucklen, Brandon& McAfee, Paul C.& Nichols, Jeff& Angara, Raghavendra& Khalil, Saif. 2013. The Comprehensive Biomechanics and Load-Sharing of Semirigid PEEK and Semirigid Posterior Dynamic Stabilization Systems. Advances in Orthopedics،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-495334
Modern Language Association (MLA)
Sengupta, Dilip K.…[et al.]. The Comprehensive Biomechanics and Load-Sharing of Semirigid PEEK and Semirigid Posterior Dynamic Stabilization Systems. Advances in Orthopedics No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-495334
American Medical Association (AMA)
Sengupta, Dilip K.& Bucklen, Brandon& McAfee, Paul C.& Nichols, Jeff& Angara, Raghavendra& Khalil, Saif. The Comprehensive Biomechanics and Load-Sharing of Semirigid PEEK and Semirigid Posterior Dynamic Stabilization Systems. Advances in Orthopedics. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-495334
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495334