Deficiency of the free border of the lip is frequently encountered in secondary cleft lip deformities. The free border of the lip consists of the orbicularis oris marginalis muscle and its overlying subcutaneous tissue, vermilion, and mucosa. The pathology may involve any or all of these components. When there is an absolute shortage of subcutaneous tissue or orbicularis oris marginalis muscle, extra tissue from another source must be used for augmentation.
|頁（從 - 到）||781-788|
|期刊||Plastic and Reconstructive Surgery|
|出版狀態||已發佈 - 一月 1 1995|
ASJC Scopus subject areas