Stapedectomy

The sacrum is rich in blood supply. The main nutritional arteries are the sacroiliac branch of the iliac and lumbar artery, the deep branch of the superior gluteal artery, the deep circumflex artery, the superrotatory circumflex artery, and the ascending branch of the lateral circumflex femoral artery [Figure 1]. Due to the pedicle length of the deep circumflex artery, it can reach 6-8cm, and its larger outer diameter can reach 1.5-3.0mm, which makes it easier to expose. In addition, the deep circumflex artery mainly supplies the anterior iliac artery and is supplied by the musculocutaneous artery. The superficial skin of the sacral condyle; therefore, clinically, the sacral graft or sacral flap transplantation is often performed on the basis of the deep circumflex arteries and veins. The average graft bone size can reach 10 × 3.5cm 2; the graft skin size can reach 10 × 7cm2 ～ 30 × 15cm2. Due to the slight curvature of the sacrum, anastomotic sacral transplantation is most suitable for reconstructing the mandible and repairing large bone defects of the pelvis. It can also be used for long bone defects of the extremities; others are used to treat early adult femoral head ischemic necrosis Wait. Anastomotic sacral flap transplantation is mostly used in patients with both bone defects and skin defects, such as skin and bone defects caused by traumatic or tumor resection.