Teng Li, Heggie Andrew A, Holmes Anthony D
Plastic Surgery Hospital of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100041, China.
Zhonghua Zheng Xing Wai Ke Za Zhi. 2005 Jan;21(1):18-21.
To study the feasibility of midface distraction for correction of severe syndromic Four consecutive patients with severe syndromic midface retrusion underwent midface retrusion.
distraction osteogenesis. The patients(three girls and one boy) aged from 4 to 12 years. Two were with Crouzon syndrome, one with Apert and one with Marfan syndrome. One was treated with Le Fort III external distraction, two with Le Fort III internal distraction, and the other with monobloc internal distraction. The distraction devices were activated on the fourth postoperative day at 1 mm per day.
All patients completed the distraction as activated on the fourth postoperative day at 1 mm per day. Results was planned. Successful advancement of 8 to 20 mm was obtained at the occlusal level in all patients as measured by cephalograms. The facial appearance was significantly improved,especially in the orbits and the upper part of the nose. Follow-up from 4 months to one year demonstrated that the face was symmetrical. All patients obtained This study shows that although midface distraction osteogenesis needs to be satisfactory results.
This study shows that although midface distraction osteogenesis needs to be improved to increase its controllability, it has obvious advantages over the traditional way of bone graft and rigid fixation. Midface distraction avoids bone grafts and alleviates the restriction of the soft tissue to midfacial bone advancement. Midface distraction osteogenesis is an effective and practical way to correct severe syndromic midfacial hypoplasia.
研究面中部牵引成骨术矫治严重综合征性面中部后缩的可行性。对4例连续性严重综合征性面中部后缩患者施行面中部牵引成骨术。
患者年龄4至12岁（3例女孩，1例男孩）。2例患有克鲁宗综合征，1例患有阿佩尔综合征，1例患有马方综合征。1例行勒福Ⅲ型外牵引，2例行勒福Ⅲ型内牵引，另1例行整块骨内牵引。术后第4天开始激活牵引装置，每天牵引1毫米。
所有患者均按计划完成牵引，即术后第4天开始每天牵引1毫米。通过头颅侧位片测量，所有患者咬合平面均成功前移8至20毫米。面部外观明显改善，尤其是眼眶和鼻上部。随访4个月至1年，面部对称。所有患者均取得满意效果。本研究表明，尽管面中部牵引成骨术仍需改进以提高其可控性，但与传统的植骨和坚固内固定方法相比具有明显优势。面中部牵引避免了植骨，减轻了软组织对面中部骨骼前移的限制。面中部牵引成骨术是矫治严重综合征性面中部发育不全的一种有效且实用的方法。
