Hoyos Alfredo E, Perez Pachon Mauricio E, Proto Ricardo, Stefanelli Matt, Castiblanco Maria Paula, Leon Machicado Mateo, Borras Osorio Mariana
Aesthet Surg J Open Forum. 2025 May 27;7:ojaf047. doi: 10.1093/asjof/ojaf047. eCollection 2025.
Fat grafting to enhance the common aesthetic features of the posterior torso is an evolving technique in aesthetic surgery. Dynamic definition liposculpture (HD2) with strategic intramuscular lipoinjection aims to achieve both a slim, athletic posterior torso for the female and a muscular, powerful back for the male.
The authors of this study introduce the muscular improvement and definition of back contour through key fat (MID BACK) grafting to improve the overall aesthetic definition while evaluating its efficacy and safety.
The authors conducted an analytical retrospective cohort study at a single plastic surgery institution in Bogotá, Colombia, from February 2023 to July 2024. Inclusion criteria were patients undergoing HD2 liposculpture with fat grafting to the back muscles. Exclusion criteria were American Society of Anesthesiologists (ASA) Class >II, BMI ≥30 kg/m, collagen- or coagulation-associated diseases, a follow-up period of <1 month and/or incomplete clinical or surgical data. Cadaveric dissections were performed to identify the safest fat injection sites. Patient satisfaction was assessed using a nonstandardized Global Aesthetic Improvement Scale between the third and sixth month postoperative.
The study cohort included a total of 102 consecutive patients. Most patients were female (66.7%), with median age of 37 years (interquartile range [IQR] 10 years), and mean BMI of 24.6 kg/m (IQR 2.96 kg/m). Fat grafting was done to the Trapezius (median volume 50 cc), erector spinae (median volume 100 cc), and latissimus dorsi (median volume 150 cc) muscles. Mean surgical duration was 265 min (IQR 50). No adverse events related to the fat grafting technique were reported. Minor complications included a superficial burn (3.7%) and a self-limited seroma (3.7%).
MID BACK graft technique is safe and effective for enhancing the back's muscular definition and amending asymmetries of the spine. This study provides a foundation for future research and potential clinical applications in body contouring procedures.
脂肪移植以增强后躯干的常见美学特征是整形手术中一种不断发展的技术。动态精准吸脂塑形术（HD2）结合策略性肌内脂肪注射旨在为女性塑造纤细、健美的后躯干，为男性塑造肌肉发达、强壮的背部。
本研究的作者介绍通过关键脂肪（背部中部）移植改善背部轮廓的肌肉状态并明确其轮廓，以改善整体美学效果，同时评估其疗效和安全性。
作者于2023年2月至2024年7月在哥伦比亚波哥大的一家整形手术机构进行了一项分析性回顾性队列研究。纳入标准为接受HD2吸脂塑形术并将脂肪移植到背部肌肉的患者。排除标准为美国麻醉医师协会（ASA）分级>II级、体重指数（BMI）≥30 kg/m²、胶原或凝血相关疾病、随访期<1个月和/或临床或手术数据不完整。进行尸体解剖以确定最安全的脂肪注射部位。术后第三至六个月使用非标准化的整体美学改善量表评估患者满意度。
研究队列共纳入102例连续患者。大多数患者为女性（66.7%），中位年龄37岁（四分位间距[IQR]为10岁），平均BMI为24.6 kg/m²（IQR为2.96 kg/m²）。脂肪移植到斜方肌（中位体积50 cc）、竖脊肌（中位体积100 cc）和背阔肌（中位体积150 cc）。平均手术时长为265分钟（IQR为50）。未报告与脂肪移植技术相关的不良事件。轻微并发症包括浅表烧伤（3.7%）和自限性血清肿（3.7%）。
背部中部移植技术对于增强背部肌肉轮廓和纠正脊柱不对称是安全有效的。本研究为未来身体塑形手术的研究和潜在临床应用提供了基础。
