Need Advice ASAP

I ran my good cowdog pup over woth tractor tire in October , knew something was wrong after first day , asked vet to look at it on screen with floroscope and sure enough the hip was out of its socket, he popped it back in , 2 days later it came out just resting in the kenell , vet said the more days go by the more scar tissue and inflammation will make it pop out and not stay in , I insisted he try again , heard a loud pop and checked with floroscope and it was in place , 2 weeks of kennel rest and He has never looked back, he was about 9 or 10 months when it happened , now at about 14 months and would never know he ever had a wreck and is a tough head dog been rolled plenty of times and no issues , if they got them back in place for you I think the youth of the joints are on your side , let him heal and rest properly and he should be good for years to come