Utsunomiya Hiroki, Kusano Taro, Sato Nobuhiro, Yoshimoto Shinya
From the *Department of Plastic Reconstructive Surgery, and †Division of Aesthetic Surgery, Department of Plastic Reconstructive Surgery, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan.
Ann Plast Surg. 2017 Jul;79(1):79-81. doi: 10.1097/SAP.0000000000001057.
Conventional 2-stage expander-implant breast reconstruction is frequently performed. However, direct to implant reconstruction should be considered if indicated and if circumstances allow. One difficulty in breast reconstruction postmastectomy is selection of the appropriate implant size prior to surgery. The ability to estimate implant volume and mastectomy-specimen volume from the preoperative breast volume using a 3-dimensional (3D) scanner would greatly facilitate reconstruction. We investigated the relation between preoperative breast volume, mastectomy-specimen volume, and implant volume.
Forty-eight women who underwent 2-stage expander-implant reconstruction between April 2014 and September 2015 were included in this study. A 3D scanner (Kinect V1; Microsoft Corporation, Redmond, Wash) was used for measuring preoperative breast volume. We evaluated the relation of the measured preoperative breast volume, the mastectomy-specimen volume, and the implant volume using the Pearson correlation coefficient.
A strong correlation existed between preoperative breast volume, mastectomy-specimen volume, and implant volume. The following formulae were calculated:Mastectomy-specimen volume (mL) = 1.01 × preoperative breast volume (mL) + 9.91Implant volume (mL) = 0.90 × preoperative breast volume (mL) + 65.42Implant volume (mL) = 0.68 × mastectomy-specimen volume (mL) + 68.26This study shows that preoperative breast volume, as measured by a 3D Kinect scanner, can provide useful assistance in the preoperative choice of implant size.
传统的两阶段扩张器-植入物乳房重建术经常被实施。然而，如果有指征且情况允许，应考虑直接植入重建。乳房切除术后乳房重建的一个难点是术前选择合适的植入物体积。使用三维（3D）扫描仪根据术前乳房体积估计植入物体积和乳房切除标本体积的能力将极大地促进重建。我们研究了术前乳房体积、乳房切除标本体积和植入物体积之间的关系。
本研究纳入了2014年4月至2015年9月期间接受两阶段扩张器-植入物重建的48名女性。使用3D扫描仪（Kinect V1；微软公司，华盛顿州雷德蒙德）测量术前乳房体积。我们使用Pearson相关系数评估测量的术前乳房体积、乳房切除标本体积和植入物体积之间的关系。
术前乳房体积、乳房切除标本体积和植入物体积之间存在很强的相关性。计算出以下公式：
乳房切除标本体积（mL）=1.01×术前乳房体积（mL）+9.91
植入物体积（mL）=0.90×术前乳房体积（mL）+65.42
植入物体积（mL）=0.68×乳房切除标本体积（mL）+68.26
本研究表明，通过3D Kinect扫描仪测量的术前乳房体积可为术前选择植入物体积提供有用的帮助。
