I have two fake knees---one is four and one is three!! I have been skiing since 6 mo after the first surgery. I am a ski instructor and have lots of business teaching people with artificiall joints.
Mostly, I ski an easy style---but I ski bumps, steeps and mostly black runs. I don't always ski all day like I used to--but then, I am 69 now and four hours of good skiing is nothing to sniff at!!!
Mostly I ski better now because aI don't have wonky joints throwing me out of balance. I have had lots of falls---but, just get up and move on.
Gait--is the normal walk of your body. If you are limping, then one side is taking all of the weight from the other side. That side is getting worn out faster than if you had a normal---balanced gait. If one hip is constantly going up to accomadate the pain, limp--- then, that side is taking a beating and probably affecting your spine which is thus rubbing in all the wrong places.
A limp is serious---your spine, hips and knees are no longer in alignment and are wearing on parts that should not be touching. I understand about fear of surgery---I waited so long for my left replacement and it is okay, but my right, which was replaced earlier in the process of degeneration feels wonderful, I forget all about it. My left is better, but not like my right--frankly I think that I was wrong to wait so long. I told my doc I thought I could last another year--and he simply said, "Why". Why wait for the inevitable and damage your joint even more?