http://birthdayshoes.com/top-10-most-gimmicky-shoes
This website has a lot of shoes with springs in the heel. The most
effective one for arthritis relief is "Z-Coil Shoes." I know because
I wear a pair every day and the pain in my knees is lessened by 50%.
They are expensive costing about $200-250 dollars a pair. But after
you have tried on a pair you will want to own them whatever they cost.