Wiener klinische Wochenschrift
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Wien. Klin. Wochenschr. · Sep 2001
Case ReportsHypothenar hammer syndrome caused by posttraumatic aneurysm of the ulnar artery.
The so-called hypothenar hammer syndrome is a rare entity caused by lesions of the ulnar artery secondary to repetitive trauma to the hypothenar eminence, typically found in persons working with vibrating tools. Its clinical symptoms are pain, stiffness and whitening of the smitten fingers, sometimes in combination with Raynaud's syndrome. Angiographic evaluation of the smitten forearm and hand reveals occlusions, kinking, vasospasm and stenoses of the arteries in the hand and fingers. ⋯ The only likely cause of the aneurysm was a bicycle accident some months prior to the occurrence of the aneurysm. The patient underwent vascular surgery and has been free of symptoms during six months of follow-up. A control magnetic resonance angiography performed one month after surgery revealed a normal vascular morphology.