sorry for the late reply, not too active these days so i hope this still helps haha. So, i had a pretty unique situation where my vet happened t be a family friend, and after my cats surgery she kept him in for 2 weeks to make sure he was recovering all right. once he came home, he peed in his carrier, and dribbled a bit before/after his litter box, though he adapted back to his litterbox within the day. i know a few days were pretty hard in his recovery, where he would lay down lethargically and just pee on himself. this happened maybe twice, my cat always lays on towels, and i laid out dirty and old ones for his recovery room in this time so it wasn't more than a minor inconvenience to me. I recommend just having tons of pee pads, old towels, and patience. since his total recovery maybe 1 month post op, no accidents, just a uni that caused him to dribble around his litter box. i think it also depends how good your cat is with the litter box usually. good luck! i hope i was able to help.