Anterior subluxation of the cervical spine: hyperflexion sprain.
AJNR Am J Neuroradiol
; 2(3): 243-50, 1981.
Article
em En
| MEDLINE
| ID: mdl-6786059
ABSTRACT
Anterior subluxation (hyperflexion sprain) is localized, purely ligamentous disruption of the cervical spine caused by a limited flexion force. When associated with a simple wedge fraction, also a flexion injury, anterior subluxation may be the more significant lesion. Radiographically, anterior subluxation is characterised by (1) a localized kyphotic angulation at the level of injury; (2) anterior rotation, or displacement, of the subluxed vertebra; (3) anterior narrowing and posterior widening of the disc space; (4) widening of the space between the subluxed vertebral body and the subjacent articular masses; (5) displacement of the inferior articulating facets of the subluxed vertebra with respect to their contiguous subjacent facets; and (6) widening of the interspinous space ("fanning"). The localized kyphotic angulation at the level of ligamentous disruption distinguishes pathologic anterior subluxation from diffuse "reversal of the normal cervical lordosis"; produced by voluntary positioning or muscle spasm. Anterior subluxation is clinically significant because of the approximate 20% incidence of delayed instability due to impaired ligamentous healing.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Entorses e Distensões
/
Vértebras Cervicais
/
Luxações Articulares
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Revista:
AJNR Am J Neuroradiol
Ano de publicação:
1981
Tipo de documento:
Article