My 83 yr. old mom has worn cartilage and some arthritis in her feet.  She's been painfully limping along the past year, even with orthotics in her shoes.  I read a Mayo Clinic article about her foot problem and it listed three things that might help, two of which she was already doing.  Then it recommended trying a pair of rocker bottomed sneakers.  I immediately took her out shopping for a pair.  And miracle of miracles, she was able to walk better in these.  Not perfectly mind you, but not limping along painfully.  She is now able to walk around the block which she hadn't been able to do.  She's happier and I am too !  I bought the Sketchers brand because they were the least expensive.  But she loves them so much she's bought a second pair.