WordNet (r) 3.0 (2006):
mutatis mutandis adv 1: with the necessary changes having been carried outBouvier's Law Dictionary, Revised 6th Ed (1856):
MUTATIS MUTANDIS. The necessary changes. This is a phrase of frequent practical occurrence, meaning that matters or things are generally the same, but to be altered, when necessary, as to names, offices, and the like.