Figure 4From: A rigid barrier between the heart and sternum protects the heart and lungs against rupture during negative pressure wound therapy Photograph of the right lung in a porcine sternotomy wound treated with NPWT without a rigid barrier disc between the heart and the sternum. The photograph shows lung rupture, which was found in two of the eight pigs treated with NPWT without the disc. No lung ruptures were seen in pigs treated with NPWT with the disc.Back to article page