RNG 66 year old male presented to us with post traumatic arthritis of left hip . he sustained fracture acetabulum following road traffic accident which was treated non operatively. He complained of inability to bear a weight on left side lower limb due to severe pain and was bedridden . We performed uncemented Total hip Replacement (THR). THR in n acetabular fracture is technically demanding and high level of surgical expertise is require for performing this surgery. Post operatively patient is happy and ambulatory with the help of walker.