Yes there is help for your senior dog. I have tried a natural product called Chondropaw, they are big for arthritis and dysplasia specially with senior dogs. I highly recommend it. I have tried it on my 9 year old boxer with joint pain and serious arthritis. He was in such a pain, he had a very hard time even getting up from a laydown position, reluctant to walk and go up the stairs. I didn't want to give him drugs and damage his liver. Someone told me about ChondroPaw so I decided to try it because it was natural. Well..it worked!, I saw changes in Dvorak my dog after the 1st.week and before the 2nd.month he was running again!. He seems like he doesn't have pain anymore. It worked for my dog, it may work for yours too!
They have videos of customers tracking the progress of their dogs on chondropaw. Most of them are senior dogs over 10 years old. Good luck to you
Here is their website if you would like to check them out: www.chondropaw.com