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Journal of Hand Surgery (British and European Volume)
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Articles

The Anatomical Basis for Reverse First to Fifth Dorsal Metacarpal Arterial Flaps

S. OMOKAWA
Y. TANAKA
J. RYU
VINCENT L KISH

From the Orthopedic Research Laboratory, West Virginia University, Morgantown, WV, USA, the Department of Orthopedics, Ishinkai-Yao General Hospital, Yao Osaka, Japan, and the Department of Orthopedics, Nara Medical University, Kashihara Nara, Japan

Correspondence: Dr Shohei Omokawa, 2-15-9, Kitayamato Ikoma Nara 630-0121, Japan. Tel./fax: +81 743 79 3052. E-mail: omokawa{at}kcn.ne.jp

This study discusses the anatomical basis for reverse first to fifth dorsal metacarpal arterial flaps. The arterial pattern and size of the first to fifth dorsal metacarpal arteries were examined in 20 fresh cadaver hands. Their connections to the palmar arterial system at the metacarpal head were observed, and the location, number and diameter of skin perforators from each dorsal metacarpal artery were measured. The first to fourth dorsal metacarpal arteries were found in all specimens; the fifth dorsal metacarpal artery was found in 19 of our 20 specimens. The mean diameters of the first to fifth arteries at their bifurcation site were 0.6, 0.8, 0.5, 0.4 and 0.2 mm, respectively. Each artery gave off four to eight skin perforators (diameter: 0.1–0.3 mm) between the metacarpal head and base. The first to third dorsal metacarpal arteries consistently connected to the palmar arterial system, and connections between the fourth and fifth dorsal metacarpal arteries and the palmar system were found in 65% and 40% of specimens.

Key Words: anatomy • reverse • dorsal • metacarpal • artery • flap

Journal of Hand Surgery (British and European Volume), Vol. 30, No. 1, 40-44 (2005)
DOI: 10.1016/J.JHSB.2004.09.006
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