The Effectiveness of Periarticular Anesthetic Infiltration in Postoperative Analgesia of Total Hip Arthroplasty.

 The present study aims to evaluate the effectiveness of the periarticular hip infiltration technique in the postoperative period of total hip arthroplasty.  This is a randomized double-blind controlled clinical trial in patients with femoral neck fractures or hip osteoarthritis submitted to a total hip arthroplasty at our institution. The periarticular infiltration technique consisted of the administration of an anesthetic (levobupivacaine) and a steroid (dexamethasone) agent in the nociceptor-rich tissues of the hip after orthopedic implants placement.