Biomechanics of thoracolumbar spinal fixation : a review

Extensive development of spinal instrumentation has occurred recently, benefitted by improved biomechanical knowledge. Reviewed here are various devices and the major biomechanical issues relevant to them. The devices are categorized by site of attachment. The major emphasis is on the most recently...

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Bibliographic Details
Published in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 1991-03, Vol.16 (3S), p.S84-S99
Main Author: KRAG, M. H
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biomechanical Phenomena
Bone Screws
Equipment Design
Humans
Internal Fixators
Lumbar Vertebrae - surgery
Medical sciences
Orthopedic surgery
Spinal Fusion - instrumentation
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Thoracic Vertebrae - surgery
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Summary:Extensive development of spinal instrumentation has occurred recently, benefitted by improved biomechanical knowledge. Reviewed here are various devices and the major biomechanical issues relevant to them. The devices are categorized by site of attachment. The major emphasis is on the most recently developed category: devices attached by transpedicular screws. Aspects of this last category reviewed here include screw design, screw placement, longitudinal linking devices (rods, plates), and transverse connectors (cross-linking). Emphasis is placed not only on current knowledge, but also on unresolved issues.
ISSN:0362-2436
1528-1159
DOI:10.1097/00007632-199103001-00014