Pronation of hallux. A, Normal. B, Note plantar shift of abductor hallucis and lateral shift of sesamoids with associated intrinsic muscles of hallux. AbH, Abductor hallucis; AdH, adductor hallucis; EHB, extensor hallucis brevis; FHBL, flexor hallucis brevis lateral; FHBM, flexor hallucis brevis medial.