Estlander operation

[ĕstlăn′dər, -län′-]
n.
  1. A procedure to transfer a full-thickness flap of the lip from one side of the lip to the same side of the opposite lip.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.