The patient was a 4-year-old boy who has been suffering from physical deformities since birth, manifested as a protrusion of the anterior chest wall and the disappearance of the physiological curvature of the spine. Initially, the deformities were mild and did not cause any discomfort, so the patient did not receive treatment. However, starting at the age of 3, the chest wall deformity became more pronounced and significantly altered the appearance of his chest wall.

The patient exhibits a noticeable protrusion of the chest wall and a loss of normal spinal curvature, resulting in a visibly unbalanced appearance. He was eventually diagnosed with flatback syndrome combined with a convex deformity of the chest wall.

First, incisions were made on both sides of the chest wall. The Wenlin procedure was then performed to correct the protrusion on the chest wall. Due to a secondary concavity near the xiphoid process, an incision was made at the xiphoid process to perform the standard Wang procedure for correcting this newly developed deformity. The surgery was completed in 1 hour, successfully correcting the malformations and restoring the chest wall to a normal appearance.