Final answer:
The assistive device used for proper body alignment after hip replacement surgery is a hip abduction pillow. Other assistive devices such as a walker or crutches may also be used. Proper body alignment is crucial for optimal healing and minimizing complications.
Step-by-step explanation:
The assistive device used for proper body alignment after hip replacement surgery is a hip abduction pillow. This pillow helps in maintaining proper alignment of the hip joint by keeping the legs apart while the patient is lying down. It assists in preventing the hips from turning inward or crossing over each other, which could result in dislocation of the hip joint.
In addition to the hip abduction pillow, other assistive devices such as a walker or crutches may also be used to provide support and stability while walking or standing, especially during the initial stages of recovery.