桡动脉鼻烟窝皮支皮瓣

THE FLAP BASED ON THE ANATOMIC SNUFFBOX CUTANEOUS BRANCH OF THE RADIALARTERY ANATOMlc RESEARCH AND CLINICAL APPLICATION

通过２７具新鲜尸体的上肢显微解剖观察，发现桡动脉在鼻烟窝部位恒定地发出鼻窝皮支，其方向桡背侧占８１；４％，外径０．２５ｍｍ，蒂长４．２０ｍｍ，皮支进入浅筋膜后分出上行支与下行支。皮支均有二根伴行静脉，桡神经浅支在浅筋膜下通过。通过１０例手腕及虎口挛缩病例的临床应用，该皮瓣切取范围３～５ｃｍ（宽）×１０～１４ｃｍ（长），除１例皮瓣远端２ｃｍ×１ｃｍ因静脉回流受阻皮肤浅表坏死外，其余成活良好。

AbstractOur anatomic observation of 27 fresh cadavers up-per limbs demonstrated that the radial artery sends outa cutaneous branch constantly in the anatoinic snuff-box, 81. 48% of which go dorsally and radially. Thebranch has a caliber of average 0. 25mm, and thelength of the vascular pediele is averagely 4. 18mm.The cutaneous branch sends assending and descendingtwigs at where it enters the superficial fascia. Twoveins accompany the cutaneous artery. The superficialradial nerve is beneath the deep fascia of the flap. Tenpatients with first web contracture and skin defect onthe dorsum of the hand were treated with the newflap. The flap can provide a resectable area of 3-5cm￣2×10-14cm￣2. All flaps survived, except for a patientwhose superficial flap's distal end necrosed because ofthe obstruction of vein back-flow.