Szucs 2010.

Study characteristics
Methods	Parallel RCT Approved by the ethics committee and written informed consents obtained Site: University Hospital, Wilton, Cork, Ireland Data collection: no information Funding: departmental/institutional Registration: not registered
Participants	24 ASA I to III participants aged > 50 years presenting with fractured neck of femur Excluded: patients who refused or had more than 1 fracture; Mini‐Mental Score < 22; coagulation disorder; head injury; loss of consciousness; 10 mg or more morphine administered pre‐hospital; acute intercurrent heart disease; allergy to bupivacaine, morphine, or paracetamol; skin lesion/infection at block site; renal dysfunction; evidence of systemic infection (clinically defined or elevated C‐reactive protein levels, leucocytosis, or body temperature > 37.8 °C) Type of fracture: neck of femur fracture Anaesthetic technique for surgery: spinal block Surgical technique: no information Mean age: 78.1 years (range not stated) Percentage female: 67% Length of follow‐up: 72 hours after surgery
Interventions	Intervention: continuous femoral nerve block (N = 12) Comparator: no nerve block (N = 12)
Outcomes	Relevant to this review. Pain. Opioid consumption. Participant satisfaction. Complications. Not relevant to this review. Opioid side effects. Functional outcome.
Notes	Conflict of interest: "the authors declare that they have no competing interests" DOI: 10.1186/2047‐0525‐1‐4 Email sent on 5 January 2020: additional information received from study authors Sources obtained for risk of bias assessment. Journal article with results of the trial. Conference abstract about the trial. Personal communication with trialist.