Espiral AtlasSesamoids of the foot
ossa sesamoidea pedis
Study entry
Parts
Two bones, medial and lateral, on the plantar surface of the head of the 1st metatarsal, within the tendons that pass there.
Joints
With the plantar surface of the head of the 1st metatarsal.
Palpation
They glide under the head of the 1st metatarsal when the great toe is moved passively.
Source: cap. 7, «Huesos del miembro inferior: huesos del pie: metatarso» y «Anatomía de superficie de los huesos del pie»
Clinical correlation
Fracture of the sesamoids of the great toe
The sesamoids of the great toe [CHECK: Moore's text places them in the tendon of the flexor hallucis longus; the usual description puts them in the tendons of the flexor hallucis brevis] bear the weight of the body, especially at the end of the stance phase of gait. They form before birth and ossify at the end of childhood. They can break by crushing.
Related clinical cases
- Fracture of the sesamoids of the great toe