Here are some links that we have gathered over the years to some equipment that we have found extremely beneficial in rehabilitation cases:
Help 'em up Harness   https://www.orthopets.co.uk/mobility-solutions/hel...
Perfect Fit Harness      https://www.dog-games-shop.co.uk/perfect-fit-fleec...
Ruff and Tumble Dog Drying Coats https://ruffandtumbledogcoats.com/
Dog Wheels https://walkinwheels.com/     uk sellers - http://www.wheels4dogs.co.uk/
Canine Arthritis Information https://www.caninearthritis.co.uk/

Other complementary therapists:
Adkin Acupuncture http://www.adkinveterinaryacupuncture.com/
Usen Behaviour Referrals https://www.usenbehaviourreferrals.co.uk/