Hood 1991.

Study characteristics
Methods	Parallel RCT Approved by the ethics committee and written informed consents obtained Site: Sheffield, UK Data collection: no information Funding: no information Registration: no information
Participants	50 participants > 60 years of age with hip fracture surgically treated with a pin and plate or a compression screw Excluded: absolute contraindication to a regional technique, allergy to local anaesthetic agents, systemic disease that indicated an alternative method of anaesthesia Type of fracture: intertrochanteric fracture of the neck of the femur Anaesthetic technique for surgery: general anaesthesia Surgical technique: compression screw or pin and plate device Mean age: 81 years (range 62 to 94) Percentage female: 88% Length of follow‐up: 24 hours
Interventions	Intervention: femoral (triple nerve block) nerve block and infiltration above the iliac crest (N = 25) Comparator: no nerve block (N = 25)
Outcomes	Relevant to this review. Opioids. Mortality. Complications. Not relevant to this review. Haemodynamic variables. Time to awakening from general anaesthesia. Number of participants requiring rescue analgesia. Quality of analgesia (recovery and ward staff). Prilocaine plasmatic concentrations.
Notes	Conflict of interest: no information DOI: n/a No email address Sources obtained for risk of bias assessment. Journal article with results of the trial.