Surgical Atlas of Perforator Flaps by Chunlin Hou Shimin Chang Jian Lin & Dajiang Song

Author:Chunlin Hou, Shimin Chang, Jian Lin & Dajiang Song
Language: eng
Format: epub
Publisher: Springer Netherlands, Dordrecht

After it had given off a branch that contributed to the dorsal carpal arch, a descending branch of the dorsal ulnar artery coursed to the radial and ulnar sides of the fifth metacarpal. The ulnar branch had numerous microvascular connections to the underlying fascia of the hypothenar muscle. The mean arterial diameter of this branch (at a site branching to the dorsal carpal arch) was 0.5 mm. This descending branch gave off two to four skin perforators between the ulnar styloid and the fifth metacarpal and supplied the ulnar aspect of the dorsal wrist, where it was located over the sixth compartment of the extensor retinaculum. Communications from the dorsal branch of the ulnar artery to the palmar arterial system at the fifth metacarpal head were present in all specimens.

The venous drainage of the radial and ulnar aspects of the dorsum of the wrist was partly from the concomitant veins of the neurocutaneous perforating arteries from the dorsal branches of the radial and ulnar arteries and partly from the subcutaneous cephalic and basilic venous system.

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