Treatment of thumb tip degloving injury using the modified first dorsal metacarpal artery
In a study of the dorsal arterial system of the hand, the radial artery divided into three branches between the base of first and second metacarpals in 84.6% specimens: the princeps pollicis artery, the first dorsal metacarpal artery, and the branch to the deep palmar arterial arch.
This space was supplied by the first common palmar metacarpal artery from the deep palmar arch.
Caption: Figure 7 Clinical photo illustrating a first dorsal metacarpal artery
based kite flap used to cover defect of the dorsal aspect of the thumb following a burn injury (preoperative, immediate postoperative, 1 year postoperative).
[4,5] First dorsal metacarpal artery
arises directly from the radial artery between the base of thumb and the index metacarpal, then divides into branches.