With cloning, you wouldn't be using his DNA or whatever together with a bitch's to make offspring. They take the DNA out of a cell from another animal, insert all of Maxx's DNA (just for ease, we'll use Maxx's name), and then insert this cell into the uterus of about 150 - 500 females, hoping that it will take and that at least one will be born.
The resulting offspring would be genetically identical to Maxx (except for mitochondrial DNA from the host cell), but there's no accounting for environmental influences. At this point, we don't know how much of MVD or syringomyelia is environmental.
All that said - they don't have the technology to clone dogs yet. Apparently it's a lot more difficult than cats. But you can always "bank" your dog's DNA with Genetic Savings and Clone in Sausalito, CA in hopes that they will one day be able to do it. Barring government bans, which are currently in the works.
I think that a better idea is to outcross to another breed to bring in new genes.
Dogs are not our whole life, but they make our lives whole.