Three-dimensional Anatomy of the Velopharyngeal Muscles in the Cleft Palate

解剖 尸体痉挛 软腭 医学 副腭 腭成形术 口腔正畸科 外科
作者
Jiuli Zhao,Hongbing Ma,Yongqian Wang,Tao Song,Di Wu,Ningbei Yin
标识
DOI:10.1177/10556656231176867
摘要

We have used micro-computed tomography (CT) to elucidate the relationship between the muscle fibers in specimens with cleft palate. These findings could be useful for muscle reconstruction in cleft palate repair and to better understand cleft palate speech.Cadaveric anatomical study.This study included three specimens with cleft palate.The specimens were stained with phosphomolybdic acid and scanned by Micro-CT.The anatomy of the muscles.Using 2D projection images and 3D reconstruction models, subtle anatomical structures could be observed in the muscles. The attachment of the levator veli palatini (LVP) was not at the posterior edge of the hard palate or palatine aponeurosis (PA), but at the anterior 21.71-44.2% of the cleft edge. The palatopharyngeal (PP) was composed of two bundles: inferior and superior heads, which clasped the LVP. The uvularis was unevenly distributed, and located on both sides of the cleft edge, originating at the edge. The palatoglossus, superior constrictor of pharynx and anatomical structure around the pterygoid hamulus, were normal. The PA, PP and LVP were attached to the cleft edge from front to back, in that order. The position of the uvularis was not fixed.With the help of Micro-CT technology, detailed anatomical features and the relationship between muscles could be visualized. In the specimen with cleft palate, muscles in the soft palate were associated with the pharyngeal muscles, which formed the 3D "velopharyngeal muscles complex." These findings provide anatomical evidence for muscle reconstruction in cleft palate repair.
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