Effect of vitamin C on pain and inflammatory responses after total hip arthroplasty: a prospective randomized controlled study

INTERVENTION: Control:none;vitamin C group:Perioperative vitamin C use;corticosteroid group:Perioperative corticosteroid use; CONDITION: hip osteoarthritis PRIMARY OUTCOME: visual analogue scale;Cumulative use of morphine;C‐reaction protein;IL‐6;ESR; SECONDARY OUTCOME: Harris scale;perioperative blood loss;Hip range of motion and circumference;Imaging assessment of thigh and buttock muscle volume; INCLUSION CRITERIA: Patients with end‐stage osteoarthritis of the hip planned to undergo total hip arthroplasty at the Department of Bone and Joint Surgery in our hospital.