Nissen Fundoplication. In the Nissen fundoplication procedure, the fundus of the stomach is used to create a 360 degree wrap around the lower esophagus (Source: Dr. James P. Gray, released to public domain, via https://​upload.​wikimedia.​org/​wikipedia/​commons/​d/​dc/​Nissen_​fundoplication.​png. Downloaded on 24 Dec 2013)