Wikis > Biomechanics > Clinical Biomechanics > Pathomechanical Entities > Dorsiflexed first ray / metatarsus primus elevatus
Dorsiflexed first ray
Also called metatarsus primus elevatus
Definition:
Osseous or soft tissue deformity in which the first ray lies in a dorsiflexed position relative to the lessor rays when the subtalar joint is in its defined neutral position and the defined locked position of the MTJ.
Aetiology:
May be congenital or acquired
Acquired due to contracture of tibialis anterior and may be associated with forefoot supinatus.
Prevalence:
Unknown
Diagnosis:
See definition.
Congenital generally has a larger ROM
Pathomechanics:
First ray cannot plantarflex during gait MPJ can’t dorsiflex dorsal jamming of MPJ and proximal compensations
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