Evaluation of a Modification of the McKinnon Technique to Correct Urine Pooling in Mares

Abstract

The objective of this trial was to determine whether the incidence of defects in mucosal tunnels created to correct urovagina in mares could be decreased by modifying the commonly used McKinnon technique of urethroplasty. The urethral fold of 30 mares, none of which suffered from urovagina, was split transversely into dorsal and ventral shelves, and the ventral shelf was used to help create a urethral extension. The dorsal shelf was stretched caudally and sutured to the extension so that it covered at least the cranial half of the extension. [...]