Skin soft tissue expansion is referred to as skin expansion, which refers to the implantation of a soft tissue expander under the normal skin soft tissue, and the injection of liquid into the expansion capsule through an injection jug to increase the volume of the expander, so that it generates pressure on the surface skin soft tissue, and through the local action of the expansion mechanism, the division and proliferation of tissue and epidermal cells and the enlargement of the cell gap, thus increasing the skin area, or through the mechanical The skin can be extended by mechanical traction, and the newly added skin and soft tissue can be used for tissue repair and organ reconstruction.
Surgical indications 1, scar baldness, partial cranial exposure or head tumor excision trauma repair 2, facial and neck scar, post-traumatic injury, hemangioma and giant nevus excision repair 3, organ reconstruction such as total nose reconstruction, ear reconstruction 4, trunk scar, defect, bone exposure, benign tumor and tattoo excision trauma repair 5, extremity scar 6, expansion of the skin donor area and flap prefabricated Preoperative preparation of materials Sterile orthopedic instruments and dressings, skin soft tissue dilator, syringe, No. 4 needle, methylene blue, negative pressure suction tube, negative pressure suction device Surgical points: 1, precise design of the operation 2, strict aseptic operation 3, special attention to protect the dilator during the operation, so as to avoid damage to the wall of the capsule by the needle or sharp instruments 4, complete hemostasis 5, avoid damage to important tissue structures 6, the dilating capsule should be injected with sterile saline for injection The dilator should be filled with sterile injectable saline, about 10%, with a negative pressure suction tube under the dilator.
Postoperative complications: infection, hematoma, seroma, dilator exposure, skin necrosis, dilatation capsule leakage, etc.