Analysis of chest wall elevation after the Nuss procedure using 3D body scanning technique in patients with pectus excavatum
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In brief
In brief
This study used non-invasive 3D body scanning to quantify chest wall elevation in 11 pediatric patients following the Nuss procedure for pectus excavatum. Results showed mean elevation of 38.6mm at the deepest point with indirect lifting effects across the anterior chest, demonstrating the technique's value for objective surgical outcome assessment.
Written by the GCMD Library team from the article.
Abstract
Purpose
For the evaluation of the chest wall deformity, we adopted a non-invasive 3D body scanning system. The objective of this study is to evaluate surgical effect on the whole thorax using 3D scanning technique before and after Nuss procedure.
Methods
We performed 3D body scanning using Structure Sensor (Occipital Inc, USA) in 11 symmetric patients (average age 13 ± 3.2) under general anesthesia before and after Nuss procedure. Using the scanned data, the improved chest wall was analyzed using 3D-Rugle (Medic Engineering, Japan) imaging software. Preoperative and postoperative 3D data were super-imposed and a thoracic elevating distance in the line of the axial and sagittal section through the deepest point was calculated. Pre- and postoperative external sternal angle (ESA) were calculated from the scanned data.
Results
Mean thoracic elevation distance at the deepest point was 38.6 ± 6.1 mm and it was 28.4 ± 5.1 mm and 19.4 ± 4.9 mm at 4 cm and 8 cm cranial side, respectively. Average ESA improved from 3.9 ± 1.6 degrees to 15.0 ± 1.1 degrees after the operation.
Conclusion
Chest depression was effectively elevated 39 mm at the deepest point after Nuss procedure. An indirect elevation effect by pectus bars was found on the wide area of the anterior chest.