Margulies Ilana G, Greenberg Alex M, Taub Peter J
Division of Plastic and Reconstructive Surgery, Icahn School of Medicine at Mount Sinai, New York, NY.
J Craniofac Surg. 2020 Jan/Feb;31(1):286-288. doi: 10.1097/SCS.0000000000005832.
Le Fort III distraction is indicated for the management of skeletal malocclusions, midface hypoplasia, and exorbitism and has been found to be a safe procedure with predictable results. Although variation in the placement of the lateral orbital osteotomy has been described, the classic osteotomy divides the zygomatic arch, crosses the lateral orbital rim, transverses the orbital floor, and ends in the midline. Distraction of this segment may lead to a palpable, and sometimes visible, step deformity between the lower and upper segments of the lateral orbital wall. The authors present a novel approach to the management of the lateral orbital wall step deformity following Le Fort III distraction.
勒福Ⅲ型骨牵引适用于治疗骨骼错颌畸形、面中部发育不全和眼球突出症，并且已被证明是一种安全的手术，效果可预测。尽管已有文献描述了外侧眶骨切开术位置的变化，但经典的骨切开术会切开颧弓，穿过外侧眶缘，横过眶底，并在中线处结束。该节段的牵引可能会导致外侧眶壁上下节段之间出现可触及的，有时甚至是可见的阶梯状畸形。作者提出了一种新的方法来处理勒福Ⅲ型骨牵引术后的外侧眶壁阶梯状畸形。
