Hi Maria, much like you I’m 3 years on from double hip replacement. Both of mine internally rotate, so longer distances can be a bit sore, but I’m working on it just by concentrating on my foot strike and slightly widening my gait, which seems to be working. [ along with gym work]. I didn’t realise I was doing it until it was pointed out to me by a fellow runner. My new hips were by the posterior method so maybe that could have something to do with it but I’m only guessing.