Roddi R, Vaandrager J M, Gilbert P M, van der Meulen J C
Department of Plastic and Reconstructive Surgery, University Hospital Rotterdam, The Netherlands.
J Craniomaxillofac Surg. 1993 Sep;21(6):226-33. doi: 10.1016/s1010-5182(05)80038-1.
It is possible to modify the mathematical patterns of projection geometry to reshape the skull in cranio-facial surgery. The technique of the 'gore-pattern' in accordance with the Hendel procedure changes the shape of individual sections of the skull by changing their radius of curvature. This technique was well known to engineers who built complex structures such as ships, hulls, airfoils and domes. A rigid form of the desired shape is the result to be achieved, which becomes permanent with healing. The gore-pattern is developed by cutting the surface of the sphere along longitudinal lines. Straightening each piece results in a series of elliptical segments referred to as 'gores'. When constructing a sphere from a flat sheet of material, each segment (gore) is bent through 180 degrees and then assembled side-by-side into a sphere. If the gore is cut in the middle, a hemisphere results. Because there are only small areas of contact between the gores, less bending force is necessary to fold a gore-pattern into a sphere than a zone-pattern. The interesting points of this technique, its advantages, and clinical application in the treatment of skull deformity in scaphocephaly are illustrated.
在颅面外科手术中，通过修改投影几何的数学模式来重塑颅骨是可行的。根据亨德尔手术的“戈雷模式”技术，通过改变颅骨各部分的曲率半径来改变其形状。这种技术对于建造船舶、船体、机翼和穹顶等复杂结构的工程师来说并不陌生。最终要实现的是一种所需形状的刚性形式，随着愈合过程它会永久固定下来。戈雷模式是通过沿纵线切割球体表面而形成的。将每一片弄直会得到一系列被称为“戈雷”的椭圆形片段。当用一块平板材料构建一个球体时，每个片段（戈雷）弯曲180度，然后并排组装成一个球体。如果在戈雷的中间切割，就会得到一个半球体。由于戈雷之间只有小面积的接触，将戈雷模式折叠成球体所需的弯曲力比区域模式要小。本文阐述了该技术的有趣之处、优点以及在舟状头畸形颅骨畸形治疗中的临床应用。
