How long the nose is stretched depends on the choice of rhinoplasty scheme, the amount of nose skin and the skin's tolerance. Autologous dermis can not be used as an extension of skin, which is helpful to improve the condition of thin skin. According to the design, costal cartilage transplantation is usually recommended when the height is more than 3-4mm, and the auricle cartilage can achieve the desired effect below 3 mm of nasal septum. The protrusion of the mouth makes the nasal columella and alar depression more obvious visually. Considering the effect of comprehensive nasal surgery, it is necessary to carry out basal packing. In addition, a prominent mouth may be accompanied by a short chin. Judging from the effect of face modification and rhinoplasty, it is best to pad chin when necessary, and you can choose dilator or silicone pad chin. The main content of the operation is to cut off the connection between the cartilage in the nose, fully loosen the skin on the back of the nose, and cooperate with the implantation of L-shaped prosthesis, the alar can be appropriately lengthened by 2-3 mm. If you put your own ear cartilage or nasal septum cartilage on the tip of the nose, you can lengthen the alar by 5 mm If you replace the L-shaped prosthesis with your own ribs, you can lengthen the tip of the nose downward 1cm. Click to understand the people suitable for rhinoplasty, and analyze the function of short nose lengthening, which is mainly used to coordinate the atrium of facial aesthetics. The recovery time of short nose extension is about half a month. Because the operation process is complicated and the recovery is slow, but the principle of hidden incision is still followed, and no trace can be seen after recovery, just like birth. The main materials of short nose lengthening surgery are: 1, silicone rubber: (currently the mainstream) silicone rubber has good elasticity, easy shaping, good chemical inertia, non-toxic, non-carcinogenic, non-teratogenic and good histocompatibility. After implantation, there was a slight transient inflammatory reaction in the local area, and a thin fibrous capsule was formed around it in the later stage. It is one of the most widely used and effective materials in rhinoplasty. 2. Nasal septal cartilage: Nasal septal cartilage is a plate-like cartilage that separates the two nasal cavities. When the front and upper parts of it are removed integrally, the nose shape can be kept intact and the required materials can be obtained. Moreover, the material selection and rhinoplasty are in the same incision, so it is really a strategy of "killing three birds with one arrow". The nasal septum can lengthen or raise the columella. Fixing it in front of the nasal septum can make the tip of the nose downward, which can solve the problems of "nose facing the sky" and "nose dew".