The question is but ambiguous as hip replacement is done to improve energy expenditure as it provides near normal painless bipedal gait.

The disorder causing pain and in extreme cases deformity or loss of motion is energy expensive which is neutralised by replacement .

If the leg length and offsets, inclination and version (technical aspects of surgery) are ideal, there should be no need for energy saving as there is marked normalcy of gait.

However , in bilateral disease appropriate use of stick, exercises for overall strength and agility will help .

Thanks for your answer

You're welcome.

Besides it, other associated morbidities having a toll on energy-efficient gait like associated spine or neuromuscular disorder need to be ruled out and managed accordingly.