Song Mei, Liu Yi, Liu Ping, Zhang Xianying
Burns and Plastic Surgery Center, General Hospital of Lanzhou Military Command of the PLA, 333 South Riverside Road, Lanzhou, 730050 Gansu China.
Burns Trauma. 2017 May 31;5:17. doi: 10.1186/s41038-017-0077-9. eCollection 2017.
The purpose of this study was to preliminarily assess a constant pressure and quantity fat granule injection device for minimal invasive properties in clinic.
A retrospective controlled study was carried out, from October 2013 to January 2015, on 76 female healthy patients aged between 26 and 53 years at the General Hospital of Lanzhou Military Command, China. To achieve small volume, high thrust, and precision requirements of facial fat grafting, an integrated handheld controller and motor design was adopted, reducing the volume and weight of the fat transplantation injection device. The 76 patients underwent 90 procedures each side of the face; each patient was treated with the aforementioned device on the face's left side, while a conventional hand-push injection device was used on the right side as control. The outcome was assessed on pre- and postoperative images, with 6-24 months follow-up.
The current device consistently allowed deposition of fat threads at about 55 μL/cm after cannula withdrawal; the volume of fat injected could be precisely adjusted to 0.04 mL/s. This device had the advantages of small-volume injection and convenient operation. The patients exhibited a good, stable shape and a smooth contour line in both sides. The long term satisfaction was higher for the left side than for the right one. Nodules and unevenness occurred only on the right side. Ecchymosis occurred significantly less frequent on the left side than the right one. Intraoperative pain was significantly lower for the left side than the right one.
This device offered superior control compared with the conventional one and constitutes a promising tool for surgeons practicing lipotransfer.
本研究旨在初步评估一种恒压定量脂肪颗粒注射装置在临床上的微创性能。
2013年10月至2015年1月，在中国兰州军区总医院对76例年龄在26至53岁之间的健康女性患者进行了一项回顾性对照研究。为了满足面部脂肪移植小体积、高推力和精确性的要求，采用了集成式手持控制器和电机设计，减小了脂肪移植注射装置的体积和重量。76例患者每侧面部均接受90次手术；每位患者面部左侧使用上述装置治疗，右侧使用传统手动推注装置作为对照。通过术前和术后图像评估结果，并进行6至24个月的随访。
当前装置在套管拔出后始终能以约55 μL/cm的速度沉积脂肪线；注射脂肪的体积可精确调整至0.04 mL/s。该装置具有小体积注射和操作方便的优点。两侧患者均呈现出良好、稳定的形状和光滑的轮廓线。左侧的长期满意度高于右侧。结节和不平整仅出现在右侧。左侧瘀斑出现的频率明显低于右侧。左侧术中疼痛明显低于右侧。
与传统装置相比，该装置具有更好的控制效果，是脂肪移植外科医生的一种有前景的工具。
