
My last dog (lab cross) had his front & rear dew claws removed at the same time of his castration, at about 6yrs old.
He was forever catching his front & rear dew-claws in things and he was very vocal about it, making blood-curdling screams

He never actually tore one, but it was obviously a mojor issue for him when he got one caught on somthing.
He healed up very fast with no problems atall :)
The only effect the dew-claw removal had from my dog was a good effect as he never had to face getting them stuck on somthing again :)