๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Multilobed (bilobed, trilobed, etc.) transposition flaps
Multilobed (bilobed, trilobed, etc.) transposition flaps
When there is not enough issue immediately adjacent to the wound to allow closure with a single-lobed flap, additional lobes may be added to access a suitable tissue reservoir. A classic example is the use of bilobed and trilobed flaps to close distal nasal defects. The additional lobes access the more freely mobile tissue on the superior third of the nose, displacing tension away from the vulnerable free margin of the nose. Multilobed flaps are typically chosen when the surgeon needs to (1) recruit tissue from a more sizable reservoir than is available immediately adjacent to the defect, (2) reorient the tension vector of the key stitch or displace it to a more distant location, or (3) increase the width of the pedicle in order to minimize the risk of vascular compromise. For a full discussion of bilobed flaps, see Chapter 24.