Guyuron Bahman, Afrooz Paul N
Cleveland, Ohio; and North Chicago, Ill. From the Division of Plastic Surgery, Case Western Reserve University and University Hospitals Case Medical Center, and the Chicago Medical School.
Plast Reconstr Surg. 2008 Mar;121(3):1015-1023. doi: 10.1097/01.prs.0000299464.02430.78.
Cocaine abuse causes nasal defects ranging from minor septal perforation to loss of dorsal support, potentially leading to collapse of the entire nose. The authors review the defects caused by frequent insufflation of cocaine, outline representative internal and external nasal deformities, and detail the surgical methods available to correct these deformities.
The patient must be cocaine-free for several years and committed to remaining free of cocaine use permanently. Next, a clear definition of the existing deformity and precise plan of surgical correction should be established. Surgical correction involves adequate dissection of the soft tissues and cephalic release and caudal advancement of the nasal lining, with a complete and waterproof separation of the nasal cavity from the external reconstructive site. Using costal cartilage, a tongue-and-groove technique is used to elongate the nasal frame. Kirschner wires may be used for costal cartilage graft fixation; avoiding penetration of the nasal cavity is critical. Maxillary defects are restored with cartilage and bone grafts. To address notching of the alae, V-to-Y caudal advancement flaps of the nasal lining and alar rim grafts are used. Tip projection and definition are restored with a columella strut with or without a tip graft.
The surgical outcome is gratifying and does not necessarily require external skin or nasal lining graft, or local or regional flaps. Reconstruction of massive septal perforation is unnecessary, as the nasal form can be restored without repair of this defect. The key to success is avoiding postoperative infection.
Correction of cocaine-related internal and subsequent external nasal defects is extremely challenging and requires a clear understanding of the patient's psychology and nasal abnormality.
可卡因滥用会导致鼻腔缺陷,范围从轻微的鼻中隔穿孔到鼻背支撑结构丧失,有可能导致整个鼻子塌陷。作者回顾了因频繁吸食可卡因引起的缺陷,概述了典型的鼻内和鼻外畸形,并详细介绍了可用于矫正这些畸形的手术方法。
患者必须戒毒数年,并承诺永久不再使用可卡因。接下来,应明确现有畸形的定义并制定精确的手术矫正方案。手术矫正包括充分解剖软组织,进行鼻衬里的头部松解和尾部推进,使鼻腔与外部重建部位完全且防水地分离。使用肋软骨,采用榫槽技术延长鼻支架。克氏针可用于肋软骨移植固定;避免穿透鼻腔至关重要。上颌骨缺损用软骨和骨移植修复。为解决鼻翼切迹问题,采用鼻衬里的V-Y尾部推进皮瓣和鼻翼缘移植。通过使用或不使用鼻尖移植的鼻中隔支柱来恢复鼻尖突出度和清晰度。
手术效果令人满意,不一定需要外部皮肤或鼻衬里移植,或局部或区域皮瓣。由于无需修复该缺陷即可恢复鼻外形,因此无需重建巨大的鼻中隔穿孔。成功的关键是避免术后感染。
矫正与可卡因相关的鼻内及随后的鼻外缺陷极具挑战性,需要清楚了解患者的心理和鼻腔异常情况。