Advantages of Using Blunt Cannulas for Lipolytic Injections in the Treatment of Submental Fat: A Prospective Cohort Study

Manufacturers recommend using sharp needle to inject lipolytic injections for Submental fat. To study the advantages of using blunt cannulas for lipolytic injections in the treatment of submental fat. We used sharp needle on one side of the face with the manual injection method, while on the other side, we utilized blunt cannula for dissection and injection. A total of 30 patients completed this study. There was no significant difference between the two treatment methods on the Patient-Reported Submental Fat Rating Scale, indicating that blunt cannula injection can provide the same therapeutic effect as sharp needle injection. There was a significant difference in Patient-Reported Submental Fat Impact Scale and Changes of Submental Fat thicknesss indicated the blunt cannula improved posttreatment satisfaction. Additionally, most of the patients chose blunt cannula treatment for their next session. In terms of bruising, the blunt cannula group also showed a significant fewer occurrences compared to the sharp needle group. Using a blunt cannula for dissection and injection of the lipolytic agent provides an effective technique.