Background: Knowledge about lower-back aesthetics is very limited, especially regarding surgical techniques that improve its appearance. Thus, this study aimed to describe a high-definition liposuction technique with intramuscular grafting of erector spinae muscles (longissimus). Methods: A total of 15 female patients 25-48 years of age were recruited between November 2021 and January 2022, who underwent body contouring surgery and subsequently underwent a low-back lipodefinition and echo-guided intramuscular erector spinae (longissimus) fat graft to complement the procedure. As part of the study, measurements were performed before surgery and in the immediate postoperative period. The data were stored in a database and analyzed with the SPSS Version 25 statistical software. Results: The patients' ages ranged from 25 to 48 years (mean: 37 years), with a body mass index of 18.6-29.3 (mean: 25.5). The surgical times ranged between 1 and 8 hours (mean: 3.73 hours); hospitalization times were 0.7-1 days (mean: 0.940 days). Lipograft was performed on the erector spinae muscles (longissimus), the right one with a range of 20-60 cm 3 (mean: 43.33 cm 3 ) and percentage increase of 65.3% (P < 0.0001). Regarding the left erector, similar volumes between 20 and 60 cm 3 (mean: 44.67 cm 3 ) were grafted with a percentage increase of 66.4% (P < 0.0001). Conclusions: XPINE-FAT is a safe technique that allows an increase in the immediate intramuscular thickness of the erector spinae muscles (longissimus). We observed no adverse events during the study.
Summary:
High-definition liposuction is now a reliable procedure that provides more athletic results. It is a trend among plastic surgeons and patients. The ultrasound-guided rectus abdominis fat transfer (UGRAFT) technique has expanded the range of patients who can benefit from rectus abdominis fat grafting, including those without skin laxity. Its advantage over isolated high-definition liposuction is a more natural-looking result because it increases muscle volume and provides a contoured abdomen even during movement, regardless of the patient’s position. In this article, we describe one patient undergoing the UGRAFT technique after high-definition liposuction, versus one patient undergoing only high-definition liposuction. We determined that the use of the UGRAFT technique provides greater muscle definition over those in which this technique has not been performed. The UGRAFT technique opens the possibility of developing more complete body structures regarding definition, providing volume to muscular areas. The more muscle mass and less body fat, the greater the body definition in a liposuction. The less muscle mass and more body fat, the less definition a patient will have in a liposuction. Under these principles, we improve the result by increasing the volume of muscle mass.
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