Journal article
Kinematics of the Cervical Spine Following Discectomy and Stabilization
Spine (Philadelphia, Pa. 1976), Vol.14(10), pp.1116-1121
10/1989
DOI: 10.1097/00007632-198910000-00015
PMID: 2588062
Abstract
The immediate biomechanical stability of the cervical spine following discectomy and stabilization is described. Fresh human ligamentous spines (C2-T2) were potted, and clinically relevant loads were applied by a loading frame attached to the C2 vertebra of each specimen. A set of three infrared light-emitting diodes (LEDs) were attached rigidly to each of four vertebrae (C4 to C7) to record their spatial locations after each load step application using a Selspot II (Selcom Selective Electronic, Inc., Valdese, North Carolina) system. The specimen was tested in the intact state, following discectomy at the C5-6 intervertebral level, following insertion of a bone graft in the intervertebral space, and following the application of an anterior metal plate. The load-deformation data of the injured and stabilized tests were normalized with regard to the corresponding results of the intact specimens. At the injured level (C5-6), the load-deformation results indicated a highly significant increase in motion in flexion (66.6%), extension (69.5%), lateral bending (41.3%), and axial rotation (37.9%). After the insertion of the bone graft, a significant decrease in motion was seen in the effected segment in extension (-45.9%), with similar reductions in lateral bending and axial rotation and a smaller reduction in flexion. The application of an anterior metal plate in addition to the bone graft at the injured level provided significant reduction in motion (-70%) in all load modalities. This data may have clinical relevance regarding the role of internal fixation in cases of severe spine instability.
Details
- Title: Subtitle
- Kinematics of the Cervical Spine Following Discectomy and Stabilization
- Creators
- KARY SCHULTECHARLES R CLARKVIJAY K GOEL
- Resource Type
- Journal article
- Publication Details
- Spine (Philadelphia, Pa. 1976), Vol.14(10), pp.1116-1121
- DOI
- 10.1097/00007632-198910000-00015
- PMID
- 2588062
- NLM abbreviation
- Spine (Phila Pa 1976)
- ISSN
- 0362-2436
- eISSN
- 1528-1159
- Publisher
- Lippincott Williams & Wilkins
- Language
- English
- Date published
- 10/1989
- Academic Unit
- Orthopedics and Rehabilitation
- Record Identifier
- 9984040383902771
Metrics
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