"Ulna dimelia is treated with surgical reconstruction intervention7. Generally, it is recommended that the reconstruction surgery be performed before the age of two. It is useful for the parents to observe their child during playing to establish the best radial digit for pollicising 7,8."
"type 1: there is ulnar dimelia showing two ulnae with absent radius"
"type 2: an intermediate form having two ulnae and a radius"
"type 3: also an intermediate form having mirror hand polydactyly with one radius and one ulna"
"type 4: a syndromal mirror hand with fibular dimelia (Laurin Sandrow syndrome)"
"type 5: multiple hands on the end of forearm"
Expected headings
"Embryology"
"Treatment"
"Ulnar dimelia or mirror hand syndrome is a rare congenital anomaly of the upper limb characterised by absence of the radial ray (including thumb), duplication of the ulna and duplication of the ulnar halves of the carpals, metacarpals and phalanges 1."