EUCTR2015‐000078‐36‐DK.

Trial name or title	Analgesic effect of a supplemental nerve block in patients with hip fracture
Methods	Parallel RCT Double‐blind
Participants	Inclusion criteria: clinical suspicion of hip fracture, successful sensory effect of femoral nerve block, mentally capable of comprehending and using verbal pain score and distinguishing between pain from fractured hip and pain from other location, arrival in the emergency department at times when one of the doctors who do the nerve blocks for this investigation are on call, possible visualization of necessary structures with ultrasound, verbal pain score (0‐10) > 3 at rest or > 5 with passive leg raise 30 minutes after femoral nerve block, informed consent, ≥ 18 years of age Exclusion criteria: hip fracture not confirmed by x‐ray, weight < 45 kg, previously included in this trial If participant wishes to be excluded, allergy to local anaesthetics or adrenocortical hormone, visible infection in the area of the point of needle injection
Interventions	Treatment group: femoral nerve block with bupivacaine 0.25% Control group: placebo
Outcomes	Primary outcome: frequency of sufficient analgesia 20 minutes after a supplemental obturator nerve block vs placebo Secondary outcomes: success rate, time to perform the block, onset time
Starting date	17/03/2015
Contact information	Department of Anaesthesia and Intensive Care, Aarhus University Hospital, Nørrebrogade 44, 8000 Aarhus, Denmark +4528782877 thomas.dahl.nielsen@clin.au.dk
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