鞍鼻畸形的发生与鼻背边缘周围的三角软骨片的逐渐吸收有关。中隔软骨内结合部间压力系统是鼻中隔软骨中平衡的压力系统。根据此生物力学特征．作者提出了一种改良的软骨切开的设计。其方法是在中隔软骨的凹面做几个与异苦相平行的全厚层切口，再做几个与之相垂直的切口，凸面 The occurrence of saddle nose deformity is related to the gradual absorption of triangular cartilage around the nostril edge. The septal cartilage internal pressure system is a balanced pressure system in the septal cartilage. According to this biomechanical feature. The authors propose a modified cartilage incision design. The method is done in the concave surface of septal cartilage several parallels with the Aberration full thickness incision, and then do a few vertical incision, convex