Compared with the traditional surgical method for pectus excavatum—the Nuss procedure, the Wang procedure offers numerous advantages. Its benefits go beyond less traumas and shorter recovery time; at its core, the Wang procedure prioritizes patient safety by eliminating the risk of cardiac injury—a critical concern in the Nuss procedure. Additionally, it can be applied to young patients under the age of 5, with more stable and lasting effects. The main reason is that the Wang procedure completely overturns the operating principle of the Nuss procedure. The Nuss procedure inserts the bars into the chest cavity, whereas the Wang procedure places a bar on the surface of the concave sternum to correct the deformity, thereby completely mitigating the risk of heart damage. In addition, the methods of securing the bar in the Nuss procedure and the Wang procedure are also different. The Wang procedure secures the bar solely at its middle section, which ensures that the bar will not hinder or restrict the growth and development of the bones, drastically reducing the recurrence of chest wall deformities after the puberty.