You should limit space, yes. This is so he doesn’t jump or Sprint around too much, which can strain the surgical site and potentially open it or tear it, which is painful and may lead to infections.

If you do not have a cage, see if you can rearrange some furniture in order to create a slightly smaller space. Try and take out anything he typically likes to jump on, and if you see he may try to jump up on something, either make an easy ramp so he can likely walk up, or deter him by keeping him occupied on the floor.

An xpen from amazon is great and affordable