This is the second grooming incident reported on Yorkietalk this week...
I'll just add to what Jeanie wrote by telling you to keep the sleeping crate by your bed at night for his comfort and security, and so you can hear if he is in pain or needs your attention. And yes, he will definitely have to be confined to an x-pen during the day when you are not there, although it's preferable if someone can be present at all times, especially during the first few critical days of recovery. Be sure he takes his pain killers when he is supposed to, and if he tries to be too active for his own good, you might consider asking the vet for a sedative. I asked for a sedative following my Bella's MPL surgery, but didn't need to use it. I don't believe in sedating a dog unless it's part of the routine care procedure or unless it's absolutely necessary for the dog's safety and well-being.