Journal article
Biomechanical evaluation of Caspar and Cervical Spine Locking Plate systems in a cadaveric model
Journal of neurosurgery, Vol.84(6), pp.1039-1045
06/1996
DOI: 10.3171/jns.1996.84.6.1039
PMID: 8847569
Abstract
There exist two markedly different instrumentation systems for the anterior cervical spine: the Cervical Spine Locking Plate (CSLP) system, which uses unicortical screws with a locking hub mechanism for attachment, and the Caspar Trapezial Plate System, which is secured with unlocked bicortical screws. The biomechanical stability of these two systems was evaluated in a cadaveric model of complete C5-6 instability. The immediate stability was determined in six loading modalities: flexion, extension, right and left lateral bending, and right and left axial rotation. Biomechanical stability was reassessed following fatigue with 5000 cycles of flexion-extension, and finally, the spines were loaded in flexion until the instrumentation failed. The Caspar system stabilized significantly in flexion before (p < 0.05) but not after fatigue, and it stabilized significantly in extension before (p < 0.01) and after fatigue (p < 0.01). The CSLP system stabilized significantly in flexion before (p < 0.01) but not after fatigue, and it did not stabilize in extension before or after fatigue. The moment needed to produce failure in flexion did not differ substantially between the two plating systems. The discrepancy in the biomechanical stability of these two systems may be due to differences in bone screw fixation.
Details
- Title: Subtitle
- Biomechanical evaluation of Caspar and Cervical Spine Locking Plate systems in a cadaveric model
- Creators
- John D Clausen - Department of Biomedical Engineering (Division of Neurosurgery), University of Iowa, Iowa City, USATimothy C RykenVincent C TraynelisPaul D SawinFranklin DexterVijay K Goel
- Resource Type
- Journal article
- Publication Details
- Journal of neurosurgery, Vol.84(6), pp.1039-1045
- Publisher
- United States
- DOI
- 10.3171/jns.1996.84.6.1039
- PMID
- 8847569
- ISSN
- 0022-3085
- eISSN
- 1933-0693
- Grant note
- AR40166-03 / NIAMS NIH HHS
- Language
- English
- Date published
- 06/1996
- Academic Unit
- Health Management and Policy; Anesthesia; Neurosurgery
- Record Identifier
- 9983806375002771
Metrics
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