A randomized controlled trial (RCT) with a follow up time of 48 hrs. Patients scheduled for primary Total Hip Arthroplasty. A total of 120 patients randomly assigned to one of the two alternatives (general anaesthesia (GA) or regional anaesthesia (RA)).~General anaesthesia compared to intrathecal anaesthesia will give shorter length of hospital stay (LOS) for patients undergoing total hip arthroplasty (THA).~Primary endpoint:~LOS.~Secondary endpoints:~Postoperative pain? Postoperative orthostatic function (dizziness) Time until the patient meets the discharge criteria from PACU How many patients will need at least one urinary bladder catheterisation
The purpose of this study is to determine whether general anaesthesia or regional anaesthesia is best for patients undergoing Total Hip Arthroplasty.