Avulsion injuries that have extensive damage to the proximal and distal ends of the digital arteries
and nerves making anastomosis technically demanding or impossible.
Although the use of magnetic resonance imaging (MRI) has been advocated in the diagnostic workup for foot arteries aneurysms (5), it has some disadvantages that include the low quality in visualizing digital arteries
Brought on by cold temperatures or emotional stress, pallor followed by cyanosis of the fingers results from spasm and closure of the muscular digital arteries
The patient maintained Doppler signals at the level of the distal ulnar artery, but not at the level of the digital arteries
The princeps pollicis artery descends along the ulnar border of the first metacarpal and divides into two proper digital arteries
that run along each side of the thumb.
This raises the possibility that the ischaemia induced is not complete or that the digital arteries
are augmented by another blood supply.