#1 Total hip replacement	“total hip arthroplasty” OR THA OR “total hip replacement” OR THR OR ′total hip replacement'/exp
#2 Post-traumatic arthritis	‘post traumatic arthritis’ OR ‘post traumatic osteoarthritis’ OR ‘arthritis’ OR ‘arthritis’/exp
#3 History acetabular fracture	‘acetabul∗ fracture’ OR ‘acetabulum fracture’/exp
#4 Outcome	‘functional outcome’ OR revision OR infection OR complication OR ‘postoperative complication’ OR dislocation OR loosening OR ‘peri-prosthetic fracture’ OR fracture OR mortality OR revision OR ‘blood loss’ OR ′revision arthroplasty'/exp OR 'mortality'/exp OR 'infection'/exp OR ′postoperative complication'/exp OR ′perioperative complication'/exp OR ′hip dislocation'/exp