Because as far as the current rhinoplasty materials are concerned, autologous costal cartilage is an ideal rhinoplasty material. The material originates from itself, so there will be no rejection reaction, it is not easy to absorb, it will not penetrate the skin, it has no blood vessels, it is easy to survive, and the plastic effect is also very good. After the operation, it is no different from the real nose in terms of sight and touch. No difference. The disadvantage is that removing the ribs may cause some trauma to the body, and some people may leave scars.
On the other hand, other rhinoplasty materials have different shortcomings. Silicone gel is prone to risks of light transmission, prosthetic shaking, displacement, and penetration of the skin. In some traditional silicone gels, the presence of adhesives may cause the risk of prosthetic calcification, and the probability of film contracture is relatively high.
Because the average pore size of the material in expanded rhinoplasty is too small (only 20~40um), the anti-infection ability is weak, and there is a risk of delayed infection. The expanded body is difficult to carve and requires high surgical conditions. Because it has good tissue compatibility, it is difficult to remove it later.
The effect of injection rhinoplasty is relatively short-lived and requires long-term repeated injections to maintain the effect.
In summary, many people are willing to use autologous costal cartilage for rhinoplasty, which can avoid many sequelae.