I ended up with one leg shorter after a hip replacement. It really affected the way I walked and ultimately wore out the cartilage in my other hip and knee requiring replacement of those joints. My surgeon ignored my complaint for a long time then acted surprised when he actually measured and found the discrepancy in leg length. He recently offered to “tweak” my hip in another surgery to see if he could add length to the leg but I’m not in the mood for experimenting with another hip surgery ! I found that ordering silicone heel lifts from Amazon has been helpful. They wear out fast but with trial and error they have helped mitigate the difference in length. I also wear Hoka One One tennis shoes which provide support and padding. I am a work in progress nearly 5 years after the initial surgery :/