Mayo-Robson's position

Mayo-Rob·son's position

(-rōb′sənz)
n.
A supine position with a thick pad under the loins to elevate the lumbocostal region, used in operations on the gallbladder.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.