Maurette 1988.

Methods	RCT Consent obtained from each patient.
Participants	Orthopaedic hospital Bordeaux, France 35 patients with a proximal femoral fracture Garden's screw or Hender's nail Mean age 83 years (> 70 years) Male: % not stated Number lost to follow‐up: not stated, but 2 excluded as they failed to participate in postoperative tests
Interventions	Treatment group: Spinal anaesthesia with 1.5 mg/kg prilocaine (n = 19 randomized; 18 analysed) Control group: General anaesthesia using thiopentone, spontaneous ventilation, nitrous oxide/oxygen, enflurane, dextromoramide (n = 16 randomized; 15 analysed) No premedication
Outcomes	Operative hypotension (number of patients with 20% decrease in MAP) Length of surgery
Notes	In French Length of follow‐up: 3 days
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	'random draw'
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	One patient from each group did not participate in the test and was excluded from the analysis
Selective reporting (reporting bias)	Low risk	No failed spinal mentioned
Other bias	Low risk	Groups well balanced (included similar results for mental tests before the surgery: 52.2 ± 8 and 52.5 ± 8.5 for spinal and GA respectively)