Arthrodesis of the first metatarsophalangeal joint: a biomechanical study comparing memory compression staples, cannulated screws, and a dorsal plate.
Foot Ankle Int
; 23(2): 97-101, 2002 Feb.
Article
en En
| MEDLINE
| ID: mdl-11858342
ABSTRACT
Arthrodesis of the first metatarsophalangeal joint of 21 matched pairs of cadaver toes was performed in order to compare the strength of three methods of internal fixation 1. two crossed cannulated screws, 2. a dorsal plate with an oblique 0.062 K-wire, and 3. two compression staples with an oblique 0.062 K-wire. Biomechanical testing with plantar force was carried out, and gapping across the fusion site was measured. Stiffness, load to 1-mm displacement, and force to failure was determined for each specimen. Both the plate and screw constructs were statistically stronger in force to failure and initial stiffness than the compression construct. Compression staples have an advantage in their ease of insertion and theoretical continuous compressive force across an arthrodesis site, but should be supplemented with a cast or other external immobilization until union is achieved.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Artrodesis
/
Fenómenos Biomecánicos
/
Articulación Metatarsofalángica
Tipo de estudio:
Clinical_trials
/
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Foot Ankle Int
Asunto de la revista:
ORTOPEDIA
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos