Eyrolle 1998.

Methods	RCT Ethics Committee approval
Participants	Orthopaedic hospital in Paris, France 50 patients with a proximal femoral fracture Mean age 82 years (range not stated) Male: % not stated Number lost to follow‐up: none probably
Interventions	Treatment group: Lumber plexus block using equal volumes of 2% lidocaine and 0.5% bupivacaine with 1:200,000 epinephrine (n = 25) Control group: Spinal anaesthesia with 0.5% bupivacaine (n = 25) A light sedation with propofol intravenously, as required
Outcomes	Operative hypotension (mean arterial blood pressure decrease > 20%)
Notes	Conference abstract only presence/absence of thromboprphylaxis not mentioned In the PNB group, 19/25 patients required a propofol infusion > 1 mg/kg/h. A lumbar plexus block alone was considered insufficient to provide adequate anaesthesia for hip fracture repair
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"randomized in two groups", no details
Allocation concealment (selection bias)	Unclear risk	Not mentioned
Blinding of participants and personnel (performance bias) All outcomes	High risk	Not mentioned
Blinding of outcome assessment (detection bias) All outcomes	High risk	Not mentioned
Incomplete outcome data (attrition bias) All outcomes	Low risk	No loss to follow‐up
Selective reporting (reporting bias)	Low risk	No failed block mentioned
Other bias	Low risk	Groups said to be equivalent