Warpeha R L
Clin Plast Surg. 1981 Apr;8(2):255-67.
Facial burns cause deformities through the permanent effects of wound contracture and scar hypertrophy; they are related to the depth of the burn. The depth of an acute burn can be accurately ascertained only by observation over a period of time. Facial skin burns that do not heal by three weeks are subject to increasingly permanent deformity with the passage of time. The best defense against wound contraction and hypertrophic scar is early and complete wound closure. Early and late grafting must be completely successful in "take" to avoid unsightly irregular scarring; therefore, the receptor bed must be meticulously prepared for optimal take. Both early and late grafts are patches that flatten normal contour. However, if the skin graft conforms to a position in the facial mosaic (aesthetic unit of the face), or some subunit that is harmonious with normal facial lines, the patch of proper color can give a more aesthetic result. Nonreproducible anatomical structures such as the margins of the lids, lips, and nostrils should be preserved whenever found to be normal or only partially destroyed. To minimize the distorting effects of wound contracture, pressure therapy of the face and neck, as well as the positional splinting of the neck, must be maintained for many months following grafting and epithelialization until the deleterious wound forces abate. Burns of mobile structures, such as lids and lips, do not lend themselves to control by pressure, and frequently must be managed secondarily by first totally removing scarred tissues and then applying thick skin grafts of the best color match.
面部烧伤会因伤口挛缩和瘢痕增生的永久性影响而导致畸形;它们与烧伤深度有关。急性烧伤的深度只有通过一段时间的观察才能准确确定。三周内未愈合的面部皮肤烧伤会随着时间的推移而出现越来越严重的永久性畸形。预防伤口挛缩和增生性瘢痕的最佳方法是早期完全闭合伤口。早期和晚期植皮必须在“成活”方面完全成功,以避免出现难看的不规则瘢痕;因此,必须精心准备受区以实现最佳成活。早期和晚期植皮都是使正常轮廓变平的补片。然而,如果皮肤移植与面部拼图(面部美学单位)中的某个位置或与正常面部线条和谐的某个亚单位相匹配,颜色合适的补片可以产生更美观的效果。只要发现眼睑、嘴唇和鼻孔边缘等不可复制的解剖结构正常或仅部分受损,就应予以保留。为了尽量减少伤口挛缩的扭曲作用,在植皮和上皮化后的许多个月内,必须对面部和颈部进行压力治疗,以及对颈部进行体位性夹板固定,直到有害的伤口力量减弱。眼睑和嘴唇等活动结构的烧伤不易通过压力控制,通常必须首先完全切除瘢痕组织,然后应用颜色匹配最佳的厚皮移植进行二期处理。