Oranges Carlo M, Tremp Mathias, Wang Wenjin, Madduri Srinivas, DI Summa Pietro G, Wettstein Reto, Schaefer Dirk J, Kalbermatten Daniel F
Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, Basel University Hospital, Basel, Switzerland.
Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai, P.R. China.
In Vivo. 2018 May-Jun;32(3):591-595. doi: 10.21873/invivo.11280.
Gracilis muscle flap is commonly used for the reconstruction of defects of the lower extremities. Preoperative evaluation of gracilis muscle dimension is a key aspect in surgical planning. This study aimed to determine whether patient height, weight, body mass index (BMI) and age are reliable proxy measurements of the mass of gracilis muscle flap.
Twenty-two patients treated for lower extremity reconstruction with free gracilis flap between December 2010 and December 2014 were considered. The relationships between the mass of gracilis muscle and patient height, weight, BMI and age were assessed with Pearson's product moment correlation coefficient. Defect size, mass of gracilis muscle resected and surgical outcomes were also evaluated.
There was a moderate correlation between the mass of the gracilis muscle and patient height (r=0.4), weight (r=0.4), and BMI (r=0.3), and moderate inverse correlation with age (r=-0.04). Lower extremities defects ranged in size from 3×4 cm (12 cm) to 26×11 cm (286 cm) with a mean of 81.6 cm All defects were reconstructed with the gracilis muscle, which required a resection ranging between 3 g and 105 g (mean=37.4 g) to adapt the flap to the recipient site. Complete flap loss was observed in one case.
In our series, the mass of the gracilis muscle flap was predictable in relation to height, weight, BMI, and age, which can be considered reliable proxy measurements. This will contribute to adequate flap selection for microsurgical reconstruction of lower extremity defects.
股薄肌皮瓣常用于下肢缺损的重建。术前评估股薄肌尺寸是手术规划的关键环节。本研究旨在确定患者的身高、体重、体重指数（BMI）和年龄是否是股薄肌皮瓣质量的可靠替代测量指标。
纳入2010年12月至2014年12月间22例接受游离股薄肌皮瓣进行下肢重建的患者。采用Pearson积矩相关系数评估股薄肌质量与患者身高、体重、BMI和年龄之间的关系。同时评估缺损大小、切除的股薄肌质量及手术效果。
股薄肌质量与患者身高（r = 0.4）、体重（r = 0.4）和BMI（r = 0.3）呈中度相关，与年龄呈中度负相关（r = -0.04）。下肢缺损大小范围为3×4 cm（12 cm²）至26×11 cm（286 cm²），平均为81.6 cm²。所有缺损均采用股薄肌重建，为使皮瓣适应受区，切除的股薄肌质量在3 g至105 g之间（平均 = 37.4 g）。1例出现皮瓣完全坏死。
在我们的研究系列中，股薄肌皮瓣的质量与身高、体重、BMI和年龄相关，可预测，这些指标可视为可靠的替代测量指标。这将有助于为下肢缺损的显微外科重建选择合适的皮瓣。
