A reverse anterolateral thigh island flap with the dimensions of 6 x 3, 15 x 6, and 26 x 8 cm, respectively, was elevated in 3 patients to repair the skin defects in the knee resulting from crush injuries. The pedicle of the flap was isolated in a retrograde fashion along the descending branch of the lateral circumflex femoral artery to obtain sufficient length until the pivot point was reached. The distal point of the defect to which the flap could reach for the reconstruction was 12 cm below the knee. All flaps survived, but skin necrosis occurred in the margins of those 2 large flaps. With a wide arc of rotation and sufficient skin paddle, the reverse anterolateral thigh island flap based on reverse flow is a good option for repairing skin defect around the knee; however, a staged or delayed operation might be considered in elevating a large flap.
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机译：3例患者抬高了尺寸分别为6 x 3、15 x 6和26 x 8 cm的前外侧大腿岛状皮瓣，以修复挤压伤所致的膝盖皮肤缺陷。沿着外侧旋支股动脉的下降分支以逆行方式隔离皮瓣的蒂，以获得足够的长度，直到达到枢轴点。皮瓣可到达的缺损远端位于膝盖下方12 cm。所有皮瓣均存活，但在这两个大皮瓣的边缘发生了皮肤坏死。旋转弧度大，皮肤拨片充足，基于逆向流动的大腿前外侧岛状皮瓣是修复膝盖周围皮肤缺损的不错选择。但是，抬高大襟翼时可考虑分阶段或延迟操作。
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