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Revista de la Asociación Argentina de Ortopedia y Traumatología

versión On-line ISSN 1852-7434


BOERO, Santiago et al. Interphalangeal dislocation of the hallux. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2010, vol.75, n.3, pp. 244-249. ISSN 1852-7434.

Background: Dislocation of the hallux is a rare condition, with just a few reported cases in the world literature. Miki created a 2-type classification based on radiographic and clinical findings. In both types the volar plate is avulsed from its phalangeal attachments allowing for migration into the articular space. In these cases orthopedic reduction tends to be almost impossible; therefore open reduction is mandatory. Methods: From 1995 to 2008, 8 patients were evaluated, all males aged between 21 and 46. In all cases, orthopedic reduction under local anaesthesia was performed without achieving satisfactory results. Open reduction was necessary to reestablish articular congruence. Results: Full articular congruence was achieved in all cases. Long term post-operative range of motion was 0 in six cases, and 10 and 20 degrees respectively in the two remaining ones, unrelated to the surgical approach used. Conclusions: Interphalangeal dislocation of the hallux is a rare condition that requires in most cases an open reduction to restore articular congruency. Results do not depend on the surgical approach.

Palabras clave : Dislocation; Hallux; Sesamoids.

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