We had to put our 9 yr old female boxer down in March 2017 due to degenerative myelopathy. We tried to get her to use this rear support wheelchair but she had too much pride for that. If you or someone you know in the Dallas/East Dallas area that has a dog with rear mobility issues, this is a high quality wheelchair ($350-$400) brand new. Here is a link to the wheelchair..
https://www.handicappedpets.com/dog-wheelchair-medium-adjustable-wheelchairs-for-dogs-with-disabilities/
https://www.handicappedpets.com/dog-wheelchair-medium-adjustable-wheelchairs-for-dogs-with-disabilities/