Hip-spine syndrome: the effect of total hip replacement surgery on low back pain in severe osteoarthritis of the hip.

Study Design: Prospective clinical study on the effect of total hip replacement surgery (THR) on low back pain (LBP) in patients with severe hip osteoarthritis.

Objective: To assess the affect of THR on LBP.

Summary Of Background Data: Hip osteoarthritis causes abnormal gait and spinal sagittal alignment and is associated with LBP.