Class IIA ring avulsion injuries: an absolute indication for microvascular repair. 1984

M Nissenbaum

The class II ring avulsion category, includes those patients in whom only digital arteries are damaged but all other structures are intact and functional (here labeled class IIA). Current literature suggests this is a rare lesion. Seven patients with this specific injury in whom the affected digits were nonviable are reported. Four of the seven were misdiagnosed on initial emergency room evaluation. Two did not seek additional medical attention and the condition progressed to necrosis and amputation. The other two, who sought additional treatment because of progressive ischemia, and three additional patients who were correctly diagnosed on initial examination underwent simple digital arterial repair. All digits operated on survived and demonstrated near normal function. Since failure to operate results in digital loss, this is an absolute indication for microvascular repair.

UI MeSH Term Description Entries
D008297 Male Males
D005260 Female Females
D005383 Finger Injuries General or unspecified injuries involving the fingers. Injuries, Finger,Finger Injury,Injury, Finger
D005385 Fingers Four or five slender jointed digits in humans and primates, attached to each HAND. Finger
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000673 Amputation, Traumatic Loss of a limb or other bodily appendage by accidental injury. Amputations, Traumatic,Traumatic Amputation,Traumatic Amputations
D001158 Arteries The vessels carrying blood away from the heart. Artery

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