Hand vascular injury

Vascular trauma is more common in wartime or peacetime, with vascular injuries in the limbs most common, followed by vascular injuries in the neck, pelvis, chest and abdomen. Recently, with the development and popularization of endovascular therapy, iatrogenic vascular injury has also increased. In vascular injury, there are more arterial injuries than veins, and combined injuries with isolated veins and isolated vein injuries also occur. The blood supply to the hand is extremely rich. The main sources are the radial and ulnar arteries; there are still anterior and posterior interosseous arteries; in addition, 3.7% of individuals have median arterial involvement. These blood vessels in the form of an arterial network or arterial arch constitute a channel for smooth traffic, ensuring that the hand is in a variety of functional positions of pinch, hold, grasp, and hold, and has a strong ability to adapt to blood supply. Due to the rich anastomosis of the blood vessels described above, the compensatory ability is good, so in the injured patients with rupture of the ulnar and radial arteries reported clinically, the hand survival rate can still reach about 1/3.