患者，男性，10岁，面部烧伤后瘢痕畸形6年入院。为改善面部瘢痕，患者入院行双侧颈部扩张器置入术，后因注水期间扩张皮肤局部张力过高、皮肤变薄及血运障碍，现有方案治疗效果均不佳。再次入院局部麻醉下更换颈部特制扩张器，以改变薄弱点局部应力，完成进一步扩张。后扩张器注水容积达1 200 mL并顺利完成皮瓣转移修复术，术后效果良好。该病例的临床资料及对于扩张器置入术后局部压力增高引起的皮肤变薄血运障碍的处理方法可为其他术者提供借鉴。

The case is a 10-year-old male patient with facial scar deformity, who was admitted to the hospital 6 years after burns. Bilateral soft tissue expanders were implanted on his neck in order to improve facial scars. Later, the local hypertonicity, thinning of the skin and blood flow disorder of the expanded skin during the water injection were found and the existing treatments were not effective. The patient was re-admitted to hospital and a customized neck expander was replaced under local anesthesia to change the local stress of the weak point and complete further expansion. The expander had a water injection volume of 1 200 mL in the end. After that, the flap transfer repair operation was successfully completed. The clinical data of the case and the treatment of blood flow disorder caused by the implantation of the expander can provide reference for other surgeons.