Department of Surgery, Chang Gung Memorial Hospital, Chang-Gung University, Taoyuan, Taiwan.
J Pediatr Surg. 2009 Dec;44(12):2291-5. doi: 10.1016/j.jpedsurg.2009.07.053.
We report a noninvasive method for recording the deviation of the anterior chest wall (ACW) in patients with pectus excavatum before and after the insertion and removal of a Nuss bar.
All patients undergoing the Nuss procedure at our institutions between June 2008 and February 2009 were enrolled in this study. A thermal plastic strip was used to cast the ACW at the skin level along the area corresponding to the tract of the inserted bar. The height of the ACW was defined as the perpendicular length from the xiphoid process to the transverse line drawn between the 2 midaxillary points.
Bar insertion caused a significant increase in ACW height and width. Bar removal reduced the corrective effects in terms of a significant decrease in ACW height; at the same time, an increase in ACW width was noted.
Feature extraction and analyses of permanent contour casts of the ACW help to understand immediate changes in the ACW after the Nuss procedure and may assist in the design of the bar at insertion. The Nuss bar in situ helped to maintain cosmetic benefits to the ACW.
我们报告了一种非侵入性的方法，用于记录漏斗胸患者在插入和移除 Nuss 杆前后前胸壁 (ACW) 的偏移。
本研究纳入了 2008 年 6 月至 2009 年 2 月期间在我们机构接受 Nuss 手术的所有患者。使用热塑条在皮肤水平上沿着与插入杆轨迹相对应的区域对 ACW 进行铸型。ACW 的高度定义为从剑突到 2 个腋中线之间的横线之间的垂直线的长度。
杆插入导致 ACW 高度和宽度显著增加。去除杆时，ACW 高度的显著降低降低了矫正效果；同时，注意到 ACW 宽度增加。
对 ACW 的永久性轮廓铸型进行特征提取和分析有助于了解 Nuss 手术后 ACW 的即时变化，并可能有助于插入时杆的设计。原位 Nuss 杆有助于保持 ACW 的美容效果。
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