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J Hand Surg Am. 1978 Jul;3(4):383-5.

Medical and surgical importance of the arterial blood supply of the thumb.

Abstract

The arterial supply of the thumb was studied in 50 cadaver hands. In 80% the princeps pollicis artery was the first palmar metacarpal artery, a major branch of the deep radial arch. In 50% of the specimens the princeps pollicis artery also supplied the proper radial digital artery to the index finger. Variations of the thumb arterial patterns were present in 25%. In 75% there was a single end-arterial blood supply to the thumb. The anatomic findings are correlated with problems of radial artery injections, thrombosis, and surgical injury to illustrate the clinical importance of the princeps pollicis artery.

PMID:
681725
[Indexed for MEDLINE]

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