Presentation
Chronic pain in both feet.
Patient Data
Bilateral polydactyly of the fifth toe with partial duplication of the distal third of the fifth metatarsal shaft and complete phalangeal duplication.
Case Discussion
Polydactyly is the most common congenital anomaly of the hands and feet, mostly autosomal dominant and the most common of the forefoot. Polydactyly of the foot is present in 1.7 cases per 1,000 live births. It can present as an isolated anomaly or associated with other syndromes 1-3.
Being divided into three main categories 1:
preaxial: affects the radial/tibial region
axial/medial: central region of the hand or foot
postaxial: affects the ulnar/peroneal region
Postaxial is the most common and axial is the least common.
It can be classified by the configuration of the metatarsal, according to Venn Watson 4:
normal metatarsal with distal phalanx duplication
block metatarsal
Y-shaped metatarsal
T-shaped metatarsal
normal metatarsal shaft with a wide head
duplicated ray
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