Techniques for the Procedure
RAVITCH METHOD
The Ravitch procedure is a surgical technique used to correct pectus excavatum, a condition where the chest wall is sunken due to abnormal growth of the rib cartilage. Unlike the minimally invasive Nuss procedure, the Ravitch method is an open surgery that involves the direct removal of deformed cartilage and repositioning of the sternum.
For the Ravitch Procedure, the surgeon makes a horizontal incision (often across the mid-chest) to access the sternum and rib cartilages. The Skin and muscle layers are carefully separated to expose the deformed costal cartilages (the cartilage connecting the ribs to the sternum). The abnormally grown rib cartilages that cause the chest depression are partially removed, while preserving the rib perichondrium (a layer that allows cartilage regeneration). The sternum, now freed from the pressure of the cartilage, can be repositioned. The sternum is carefully elevated into a normal position. A supportive bar or strut (such as a metal plate or mesh) may be placed behind the sternum to maintain its new position while healing. In some cases, temporary sutures or wires are used to stabilize the sternum. The muscle and skin layers are sutured back carefully to promote healing. A drain may be placed temporarily to remove excess fluids and reduce swelling.
NUSS METHOD
The Nuss procedure is a minimally invasive surgical technique used to correct pectus excavatum (also known as funnel chest). This condition occurs when the breastbone (sternum) is sunken due to abnormal rib cartilage growth. Unlike traditional open surgery, the Nuss procedure requires only small incisions and relies on a curved metal bar to reshape the chest.
During the procedure, the surgeon makes two small incisions (approximately 2-3 cm long) on either side of the chest. A thoracoscope (a small camera) is inserted through one incision to provide a clear, internal view of the chest cavity. This ensures precise placement of the corrective bar while minimizing surgical risks.
A curved metal bar, custom-shaped to fit the patient's chest, is inserted under the sternum using a tunneling technique. Once positioned, the bar is rotated 180 degrees, gently lifting the sunken chest into a normal shape. In some cases, one or two additional bars may be inserted for optimal correction, particularly in severe or asymmetrical cases.
To prevent movement, the bar is secured to the ribcage using surgical stabilizers or absorbable sutures. After confirming proper placement, the thoracoscope is removed, and the incisions are carefully closed with dissolvable sutures. A small drainage tube may be temporarily placed to remove excess fluid and prevent complications such as fluid buildup.