Clinical Research Directory

Inclusion Criteria: \- Adults aged 65 years and older undergoing surgical repair for an intertrochanteric or femoral neck hip fracture are eligible for the study. Fracture fixation can be with cannulated screws, a sliding hip screw (or similar device), a short cephalomedullary nail, or a long cephalomedullary nail. Exclusion Criteria: * Patients with pre-operative delirium; * Patients with a periprosthetic or peri implant fracture; * Patients at risk for malignant hyperthermia (history of malignant hyperthermia, family history of malignant hyperthermia susceptibility, history of rhabdomyolysis); * Patients with contraindication to local anesthesia; * considered unsuitable for randomization by the surgeon or anesthesiologist on the basis of the physician's clinical assessment (e.g. severe pulmonary disease); * treated with hip arthroplasty * received a preoperative peripheral nerve block; or * severe dementia defined as pre-operative MMSE score \< 15.