It would think that it would depend on Olie's age and when the last time you saw your vet was. Pets should see the vet once a year anyway for an annual check up (which usually goes along with vaccine boosters). For senior pets most vets recommend twice a year visits for a physical exam. Your annual visit should include a thorough full physical exam, which for Olie should include feeling the surgery site and along the spine for pain. So if your vet has not done this in the past year, it should be time to go in anyway. Because this is an amp due to trauma, if the surgery was performed at a specialist, you most likely will not have to go back to them this far out from surgery, and can just have follow ups with your regular vet from now on. Always feel free to call your vet too and see what they recommend. They will probably provide the best information because they personally know all of your pets medical history. If you are worried that your call would be bother- don't! I don't consider any question, no matter how "silly" it is, a bother because if I know that I can make an owner feel at ease it was well worth my time, and most people who work at animal hospitals feel the same.