Article

Hallux valgus is a progressive foot deformity characterized by a lateral
deviation of the hallux with corresponding medial deviation of the first
metatarsal. Late-stage changes may render the hallux painful and without
functional utility, leading to impaired gait. Various environmental, genetic, and
anatomical predispositions have been suggested, but the exact cause of hallux
valgus is unknown. Evidence indicates that conservative intervention for hallux
valgus provides relief from symptoms but does not reverse deformity. Part 1 of
this perspective article reviews the literature describing the anatomy,
pathomechanics, and etiology of hallux valgus.
Part 2 expands on the
biomechanical initiators of hallux valgus attributed to the first metatarsal.
Theory is advanced that collapse of the arch with vertical orientation (tilt) of
the first metatarsal axis initiates deformity. To counteract the progression of
hallux valgus, we use theory to discuss a possible mechanism by which foot
orthoses can bolster the arch and reorient the first metatarsal axis horizontally.

Langue : ANGLAIS