In the case of a hip replacement, movements that pose potential dislocation risks may include leaning forward by bending more than 90 degrees at the hip joint, sitting cross-legged or twisting inward on one’s hips.
However, it is imperative to follow the particular instructions given by your orthopedic surgeon. They can provide specific guidance on safe movements and actions to avoid dislocation that will guarantee an uneventful recovery. They play a crucial role in the post-operative recovery and rehabilitation.

The movements which cause dislocation after hip replacement is internal rotations

It depends upon the surgical approach used in hip replacement. If posterior approach- flexion, adduction, and internal rotation. Of anterior approach. Flexion , abdduction and external rotation

The movements which cause dislocation after hip replacement are:

a. Bending and leaning forward 
b. Sitting on low chairs, low bed, low toilets.
c. Crossing the knees
d. Lifting knee higher than your hip.