Hey @khalt, I would definitely wait on replacing your other hip until you resolve your present issue. My pains seem to be related to the muscels/tendons/ligaments along the hip flexor/upper thigh/buttock area. Leg lift from a prone position was extremely painful a few months ago, a real strain on the hip flexor. I can perform the exercise now with much less pain. The side-lying clam exercise is still very difficult for me. I seem to still have very little strength in the upper thigh of my hip replacement leg. I just started ART (Active Release Therapy) sessions and I think this could be of great benefit. They are trying to stretch out the muscels/tendons/ligaments in the problem area. I'll keep you posted.