VASCULARISATION DE LA MAIN ET SON INTÉRÊT PRATIQUE SUR LES LAMBEAUX CUTANÉS DE LA MAIN

Abstract

The hand constitutes a very particular and characteristic anatomical region; trauma can permanently alter its
essential functions. Its blood supply is dependent on the radial and ulnar arteries and the anastomoses that unite them. Many
variations can modify this typical diagram. Our series included 100 hands of adults with post-traumatic substance loss
requiring skin flap coverage, preceded by CT angiography of the upper limb. The study was carried out at the orthopaedicstraumatology
department of Ibn Rochd-C.H.U Annaba Hospital over 10 years, spread between June 2014 and June 2024. 100
CT angiography of the hand, including the frequency of patients with post-traumatic skin loss of the hand requiring skin
coverage with a male flap, is 84%, and the average age of the patients is 28 years. Work accidents dominate with a frequency
of 75%, the causal tool of which was a sharp object (67%), and the most affected finger was the thumb (65%). In total, we
have found three types of arches: U7.R3, U5.R5, and U10.R0. Type U7.R3 presents 74% of all cases; type U5.R5 presents a
frequency of 24%, and type U10.R0 presents a frequency of 02% of all cases. Our study allowed us to identify the frequency
of hand trauma with loss of substance often affecting young males and the usefulness of CT angiography in the exploration of
the arteries of the hand, highlighting the different types of arcades.