Spontaneously occurring fractures of the spine in skeletally immature animals

Twelve spontaneously occurring fractures of the spin in nine skeletally immature animals were investigated. These fractures were analyzed radiographically, morphologically, and histologically. The most commonly injured regions were the cervical and lumbar regions. Multiple-level fractures were noted...

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Bibliographic Details
Published in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 1994-06, Vol.19 (11), p.1230-1236
Main Authors: O'NEAL, M. L, LORD, M. J, GANEY, T. M, OGDEN, J. A
Format: Article
Language:English
Subjects:
Animals
Animals, Zoo - injuries
Antelopes - injuries
Artiodactyla - injuries
Biological and medical sciences
Camelus - injuries
Cervical Vertebrae - injuries
Colobus - injuries
Diseases of the osteoarticular system
Diseases of the spine
Lizards - injuries
Lumbar Vertebrae - injuries
Medical sciences
Perissodactyla - injuries
Raccoons - injuries
Spinal Cord Injuries - pathology
Spinal Cord Injuries - veterinary
Spinal Fractures - pathology
Spinal Fractures - veterinary
Thoracic Vertebrae - injuries
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Summary:Twelve spontaneously occurring fractures of the spin in nine skeletally immature animals were investigated. These fractures were analyzed radiographically, morphologically, and histologically. The most commonly injured regions were the cervical and lumbar regions. Multiple-level fractures were noted in three specimens. Morphologic and histologic examination invariably detected fractures in cases of spinal cord injury without radiographic abnormality. The end-plate physes and synchondroses were found to be the "weak links" for propagation of fractures. Radiographically benign-appearing ring apophyseal fractures were found histologically to propagate from the end-plate physis through the vertebral body via the contiguous neurocentral synchondroses. The observed morphologic and histologic fracture patterns should provide a better understanding of the probable comparable pathoanatomy of spine and spinal cord injuries in children.
ISSN:0362-2436
1528-1159
DOI:10.1097/00007632-199405310-00007