There is ALWAYS the chance that something can go awry. With your proper love and care (and barring any unfortunate accidents) your pup will live a long and healthy life of 12-15 years. But at some point in that time frame it is possible that you can have some accidents and illnesses arise.
Having a relationship with an honorable, knowledgeable and trustworthy veterinarian is a very important aspect in dog ownership.
It is equally important to receive a referral from that vet office for a nearby 24 hour emergency pet hospital in case your dog has an emergency after hours that cannot wait until the next day.
There are many things you can do to prevent common illnesses and accidents.