Hello, total costal cartilage nose syndrome. Generally, the sixth or seventh costal cartilage is taken, with a length of 6.5-8cm and a maximum incision of 3cm. Half of the cartilage is carved to lift the root and back of the nose. Half-cut therapy is used to lengthen, improve and shape the tip of the nose. The semi-rib is made of autogenous costal cartilage at the tip of the nose and prosthetic material at the back of the nose. Total costal rhinoplasty uses autogenous costal cartilage as implant material, and semi-costal cartilage is a combination of costal cartilage and prosthesis.