So after about 2 months rehab following hip replacement, I went to Bangkok for a few days walking slowing with my 2-piece walking stick. On the return flight at Suvarnabhumi, the gate agent sheepishly walked up to me and said: "There is no Jetway on this flight but a bus and stairs up to the plane. Do you need a wheelchair?"
I said no I am slow but I can handle the steps. A total sigh of relief was on her (masked) face as, if I had said that I cannot do the stairs, she would have had to arrange for one of those scissors-type cargo loaders that they use for the food carts to get me on the plane.
... and that made her day (or night).
BTW as I have mentioned previously elsewhere, my surgery resulted from a fall and hip fracture and was not from a degenerative condition.