Ma 2018a.

Study characteristics
Methods	Parallel RCT Approved by the ethics committee and informed consents obtained Site: Xuanwu Hospital of Capital Medical University, Beijing, China Data collection: December 2015 to December 2016 Funding: governmental Registration: no information
Participants	116 ASA II to IV participants with hip fracture (femoral neck or intertrochanteric fracture) diagnosed by X‐ray Excluded: patients with multiple fractures; allergy to amide local anaesthetic, paracetamol, tramadol, and pethidine; infection at the puncture site of the fascia iliaca compartment; peripheral neuropathy; renal insufficiency; dementia; waiting time before surgery longer than 5 days; patient refusal to join in the study Type of fracture: femoral neck (30%) or intertrochanteric fractures (70%) Anaesthetic technique for surgery: not mentioned Surgical technique: not mentioned Mean age: 80.5 years (range 65 to 95) Percentage female: 65.5% Length of follow‐up: AD surgery
Interventions	Intervention: fascia iliaca compartment block (N = 58) Comparator: no nerve block (N = 58)
Outcomes	Relevant to this review. Pain. Participant satisfaction. Complications. Not relevant to this review. Opioid side effects. Sedation. Rescue analgesia (number of participants who required it).
Notes	Conflict of interest: no information DOI: 10.3760/cma.j.issn.0376‐2491.2018.10.002 Email sent on 5 January 2020