NCT01219088.

Trial name or title	Postoperative pain control among intrathecal 0.1 mg morphine, femoral nerve block or periarticular infiltration of 20 mL of 0.25% bupivacaine in patients post intramedullary hip screw
Methods	Parallel RCT Single‐blind (outcome assessor)
Participants	Inclusion criteria: 18‐90 years old, good consciousness, well co‐operated, can use patient‐controlled analgesia machine, ASA physical status I‐III, no contraindication for spinal anaesthesia, accept spinal anaesthesia, body weight > 30 kg, body mass index 20‐35 kg/m2, no history of research drug allergy Exclusion criteria: previous history of hip surgery (the same side), pathological fracture, severe infection or bone cancer
Interventions	Treatment group 1: femoral nerve block, spinal anaesthesia plus femoral nerve block with 20 mL of 0.25% bupivacaine Treatment group 2: periarticular bupivacaine infiltration, spinal anaesthesia plus periarticular infiltration with 20 mL of 0.25% bupivacaine Control group 1: spinal anaesthesia with 0.5% bupivacaine alone Control group 2: spinal anaesthesia plus 0.1 mg of intrathecal morphine
Outcomes	Primary outcome measures: amount of morphine consumed during first 24 hours after surgery Secondary outcome measures: efficacy of pain control, patient satisfaction, incidences of adverse events (nausea, vomiting, pruritus)
Starting date	September 2010
Contact information	Thitima Chinachoti, MD (Madihol University), Faculty of Medicine Siniraj Hospital, Bangok, Thailand, 10700
Notes