Crating is a skill that your dog may need for the rest of his life. Dogs being treated for an illness or injury are very often on crate rest for long periods of time. If you've let your dog's crating skills diminish over time, it's going to be a tough recovery for them. Tough because of the physical issues, but even tougher because now they have to learn how to crate in addition to recuperate from the illness or injury. That's a tough combination for a dog. I'd rather have the crate already be a familiar and welcome place for the dog to be -- he's likely to actually seek out the crate for rest and recuperation instead of fighting it.
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