Scar skin expansion makes full use of limited skin resources, does not damage the donor site and does not produce new scars. The color, texture, feeling and function of the repaired skin are completely the same as those of normal skin tissue, and its therapeutic effect is far better than that of traditional skin grafting. Therefore, scar skin expansion has become one of the main techniques in plastic surgery. The skin dilator is a balloon-shaped silicon capsule made of medical silicone rubber, which consists of an expansion capsule, an injection pot and a connecting tube. The expansion sac can be expanded by injecting physiological saline into the injection tank. So what is the principle of scar skin expansion? Shijiazhuang Xingyuan Plastic Surgery Hospital experts tell you.

The application of scar skin expansion to treat skin scar or other deformities generally requires two operations and 0-3 months of expansion process. In the first operation, the dilator was implanted under the normal skin near the area to be repaired. After the incision is healed, a certain amount of normal saline is injected into the dilator regularly, so that the dilator gradually expands and the skin area on its surface also expands. When the expanded skin area reaches the required requirements for repair, a second operation can be performed to take out the dilator and remove the scar tissue, and then the expanded excess skin is transferred to the required site in the form of a flap to repair the skin defect.

For patients with large scar area and lack of normal skin around them, skin expansion technology can also be used to obtain additional skin tissue from normal parts far away from the defect, and skin transplantation can be used to repair it. At the same time, donor scars are reduced. Principle of scar skin expansion 1

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