Division of Pediatric Surgery, Department of Surgery, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, No. 5, Taoyuan, Taiwan.
Med Biol Eng Comput. 2010 Feb;48(2):133-7. doi: 10.1007/s11517-009-0570-9. Epub 2009 Dec 30.
In this study, we present finite element analysis models to calculate the increase in intrathoracic volume of pectus excavatum patients after the Nuss procedure. One virtue of our approach is that the measurement of the intrathoracic volume has no time difference and is not affected by postoperative pain, which cannot be achieved with a 2-year difference between pre- and postoperative pulmonary function testing or any other clinical method. The calculations show that the intrathoracic volume of pectus excavatum patients increased by approximately 2.72-8.88% after the Nuss procedure. The increment curve was patient-dependent, although the increment behavior was similar among the six patients examined. The curve of the increase became flat when the elevating force exceeded 80 N or the displacement of the lower sternal end exceeded 2.6 cm in half of our cases.
在这项研究中，我们提出了有限元分析模型来计算漏斗胸患者行 Nuss 手术后胸腔内容积的增加。我们方法的一个优点是，胸腔内容积的测量没有时间差，也不受术后疼痛的影响，这是无法通过术前和术后肺功能测试或任何其他临床方法在 2 年内实现的。计算表明，漏斗胸患者在 Nuss 手术后胸腔内容积增加了约 2.72-8.88%。增量曲线是患者依赖性的，尽管在检查的 6 名患者中，增量行为相似。在我们的一半病例中，当提升力超过 80N 或下胸骨端的位移超过 2.6 厘米时，增加曲线变得平坦。
