【背景】臀部形体美日渐成为人们关注的话题，由于自体脂肪移植相较于假体置 入具有创伤小、无排异反应、可同时改善臀周区域形态等优点， 自体脂肪隆臀术 已成为目前公认的改善臀部形态有效方法之一。Coleman 脂肪移植技术和臀部美 学理论体系为自体脂肪隆臀提供了指导。 目前，关于该术式可行性及有效性的相 关研究主要集中在非亚裔人群，对中国女性进行自体脂肪隆臀术的效果研究较少。 因此，本研究拟纳入实施自体脂肪隆臀的中国女性病例55 例，通过比较术前术 后常规照片，背面观腰臀比（Waist-Hip Ratio, WHR）、侧面观 WHR 、臀部后突 比值、侧面观腿臀比变化及三方满意度评估中国女性进行自体脂肪隆臀术的可行 性以及有效性。

【 目的】分析自体脂肪隆臀对提高臀部形体美的临床效果，探讨中国女性进行自 体脂肪隆臀术的安全性以及有效性。

【方法】选择 2018 年 1 月至 2024 年 1 月到中国医学科学院整形外科医院脂肪整 形科接受自体脂肪双侧隆臀术的健康女性患者 55 例，年龄22～53 岁，身体质量 指数（Body Mass Index，BMI）19.2～24.5kg/m2 。以腹部（2 例）、腰部（45 例）、 大腿后侧（8 例）为供区获取的脂肪经棉垫法纯化后，采用钝针向患者臀部注入 自体脂肪。术后6～24 个月随访观察。用常规数码相机拍摄术前与术后照片，观 察并分别记录侧面观与背面观 WHR 、臀部后突比值、腿臀比变化，用于评价其 改变程度；观察照片并收集由医生、患者与第三方对术后臀部形态改善满意程度 的优、良、中、差等级的情况。对数据进行描述性统计分析。

【结果】实施双侧自体脂肪隆臀健康女性患者 55 例，平均年龄 36.8±10.2 岁，平 均BMI 22.00±1.56kg/m2 。单侧臀部脂肪移植量150～220ml，平均 184.24±20.32ml 。 术后随访时间6～24 个月，平均随访时间 14.2±5.3 个月。所有患者术后均出现轻 度的肿胀并于术后 1～3 周（平均 14.4±4.4 天）后消失；轻度淤青 10 例（18. 18%）， 于术后 3～16 天（平均 9.7±4.0 天）消退；色素沉着 5 例（9.09%），于术后 1~  5 个月（平均 2.9±1.3 个月）消退；无患者出现血清肿、感染、硬结、表面不平、 脂肪栓塞等并发症。术前术后对比测量并记录背面观 WHR、侧面观 WHR、侧  面观腿臀比及臀部后突比值。其中术前术后臀部后突比值符合正态分布，行配对 t 检验，差异具统计学意义（P＜0.05）；背面观 WHR、侧面观 WHR 及侧面观  臀腿比三项指标不符合正态分布，故采用Wilcoxon 符号秩检验，结果显示差异  均具统计学意义（P 均＜0.05）。所有患者术后的臀部曲线与术前相比更加流畅、

优美，医生、患者及第三方满意度优良率分别为 85.45% 、80.00% 、90.91% ，通 过 Kendall 协同系数 W 检验，示高度一致性（W=0.850 ，P＜0.01）。

【结论】自体脂肪移植隆臀术可改善中国女性臀部扁平、凹陷等问题，塑造优美、 柔和的臀部曲线和臀周部位形态。是一种安全有效的臀部形态雕塑手段。

【Background】The beauty of buttock shape is increasingly becoming a topic of

concern. Compared with prosthesis implantation, autologous fat transplantation has

the advantages of less trauma, no rejection, and improvement of the shape of

surrounding areas. Buttock augmentation with autologous fat has become one of the    recognized effective methods to improve buttock shape. Coleman's fat transplantation technique and the theory of buttock aesthetics provide guidance for buttock

augmentation with autologous fat. So far, the relevant studies on the feasibility and

effectiveness of this operation have mainly focused on non-Asian people, there are

few studies on the effect of autologous fat buttock augmentation for Chinese women. Therefore, this study aimed to include 55 cases of Chinese women who had

undergone autologous fat buttock augmentation, and to evaluate the feasibility and effectiveness of autologous fat buttock augmentation in Chinese women by

comparing the digital photos, WHR from the back, lateral WHR, buttock kyphosis   ratio, lateral thigh-buttock ratio before and after operation and tripartite satisfaction.

【Objective】To evaluate the clinical effect of autologous fat buttock augmentation on improving the shape and beauty of buttock, so as to explore the feasibility and

effectiveness of autologous fat buttock augmentation for Chinese women.

【Approach】Between January 2018 and January 2024, a total of 55 healthy females, ranging in age from 22 to 53 ，Body Mass Index (BMI) from  19.2 to 24.5 kg/m² , were chosen after receiving autologous fat transfer for buttock enhancement at the Plastic Surgery Hospital of the China Academy of Medical Sciences. Fat was obtained from the  abdomens,  waists  or  thighs  of the  patients,  purified  by  cotton  pad,  and  was transplanted into the buttocks of the patients through blunt needles. All patients were followed  up  6-24  months  after  operation.  Routine  digital  photography  was  taken during  preoperative  and  postoperative   follow-ups.By    observing  preoperative   and postoperative photos, and measuring the changes ofWHRs on the back, lateral WHRs, buttock  kyphosis  ratios  and   lateral  thigh-buttock  ratios,  the   improvement  of  the buttock shape was evaluated.The  satisfaction levels (excellent, good, moderate, and poor) of doctors, patients, and third parties were gathered by examining photos taken

before  and  after   surgery.  The   collected  data  were  then   analyzed  and  described statistically.

【Results】A total of 55 healthy female patients who underwent autologous fat

buttock augmentation, with an average age of 36.8±10.2 years, was included. The

amount of unilateral buttock fat transplantation ranged from  150 to 220 ml, with an

average of 184.24±20.32ml. All patients were followed up for 6-24 months, with an

average of 14.2±5.3 months. All patients had mild swelling after operation, and the

swelling subsided within  1-3 weeks after operation (average  14.4±4.4 days). Ten

patients (18. 18%) developed localized slight bruising after operation, which lasted for 3-16 days (9.7±4.0 days on average) and then recovered. Five patients (9.09%)

experienced localized hyperpigmentation, which relived after  1-5 months (2.9±1.3

months on average). No severe complications such as seroma, infection, nodules,

unevenness and fat embolism occurred in patients. The WHR in the back view, WHR in the side view, the leg-to-hip ratio in the side view and the posterior protrusion ratio of the buttocks were measured and recorded preoperatively and postoperatively. The   posterior protrusion ratio conformed to a normal distribution and was analyzed using  a paired t-test, which revealed a statistically significant difference (P＜0.05). The

other three indicators did not follow a normal distribution and were analyzed using

the Wilcoxon signed-rank test, with all differences showing statistical significance (all P＜0.05). The excellent and good rates of satisfaction of doctors, patients and the

third party were 85.45%, 80.00% and 90.91% ，respectively. Kendall’s W coefficient of concordance confirmed that the agreement among the three parties was almost

perfect (W=0.850, P＜0.01).

【Conclusion】Autologous fat transplantation for buttock augmentation can improve problems such as flat and sunken buttocks in Chinese women, shaping a beautiful and soft buttock curve and the surrounding area ，Which is a safe and effective method for buttock contouring.