From the Department of Plastic Surgery, University of Pittsburgh Medical Center; and the School of Mechanical Engineering, University of Pittsburgh.
Plast Reconstr Surg. 2019 Aug;144(2):385-388. doi: 10.1097/PRS.0000000000005866.
Gluteal fat grafting has been highlighted as a significant safety issue in plastic surgery, with a mortality rate as high as one in 3000 cases. Injury to the gluteal veins resulting in fat emboli has been identified as the cause of these mortalities. The gluteal veins lie deep to the gluteal musculature in the buttocks, and it has been suggested that avoiding intramuscular injection of fat may prevent these complications. The authors present a novel injection cannula design that uses impedance sensing to determine the location of the cannula tip. Specifically, the system can determine when the tip of the cannula leaves the subcutaneous plane and enters muscle. The use of this system may prevent inadvertent injury to the gluteal veins and subsequent embolic complications. CLINICAL QUESTION/LEVEL OF EVIDENCE:: Therapeutic, V.
臀脂肪移植已被强调为整形手术中的一个重大安全问题，其死亡率高达每 3000 例中有一例。导致这些死亡的原因是臀静脉损伤导致脂肪栓塞。臀静脉位于臀部臀肌深处，有人建议避免肌肉内注射脂肪可能预防这些并发症。作者提出了一种新的注射套管设计，该设计使用阻抗感测来确定套管尖端的位置。具体来说，该系统可以确定套管尖端何时离开皮下平面并进入肌肉。使用该系统可能防止意外损伤臀静脉和随后的栓塞并发症。临床问题/证据水平：治疗，V。
