"Nuss procedure"
"The Ravitch procedure is one of the corrective surgical treatments for pectus excavatum and pectus carinatum. The costal cartilage is removed and the sternum detached before inserting a small bar underneath the sternum to hold it in the desired position. The bar is left implanted until the cartilage grows back; this typically take about 6 months. The bar is subsequently removed in a simple out-patient procedure."