[Finite element analysis of a new shape memory alloy cervical hook for atlantoaxial instability].
Nan Fang Yi Ke Da Xue Xue Bao
; 26(8): 1197-9, 2006 Aug.
Article
en Zh
| MEDLINE
| ID: mdl-16939920
The mechanics of a new shape memory alloy cervical hook for atlantoaxial instability was analyzed with finite element method on the basis of a three-dimensional model reconstructed from the images of CT scanning of an adult cadaveric upper cervical at 1-mm interval. The stress and displacement of every nodule and element in the course of deformation of the internal fixation were tested, and the results showed that the cervical hook was strong enough against tensile stress, which concentrates in the middle of the device. The pull was 237.58 N at the loading point. With such mechanical performance, this cervical hook can be reliable for correction of atlantoaxial instability.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dispositivos de Fijación Ortopédica
/
Articulación Atlantoaxoidea
/
Análisis de Elementos Finitos
/
Inestabilidad de la Articulación
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Adult
/
Humans
/
Male
Idioma:
Zh
Revista:
Nan Fang Yi Ke Da Xue Xue Bao
Año:
2006
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
China