The surgery is based on the so-called Ravitch technique. The surgery's aim is to straighten the chest wall, making on demand of the deformity the necessary stereotomies and the subperichondral resection of the affected parasternal cartilages. There are variants like the intraoperatory attachment systems with metal sheets and absorbable materials. The attachment systems give stability in the surgery and provoke a less painful postoperatory. Also there is the possibility of avoiding attachments and placing only the pectoral muscles on the sternum-cartilages area once it is repaired.
Within the condrogladioral class, it is possible to carry out a minimally invasive technique described by Abramson that is similar to the one realised by Nuss but the other way round. A metal splint is to be put subcutaneously which reduces the protrusion and is fixed with lateral stabilizers on the chest wall.
We must also emphasize the thoracoscopic resection of the parasternal cartilages via intrathoracic that is beginning to be used in some centres; these are novel procedures entailing an absence of scars and a larger comfortability for the patient.
The postoperatory of this kind of surgeries are usually well-tolerated and the results are more stable the closer to the puberty it is accomplished.