Cuvillon 2007.

Study characteristics
Methods	Parallel RCT Approved by the ethics committee and written informed consents obtained Site: Centre Hospitalier Universitaire de Nîmes, France Data collection: September 1999 to June 2002 Funding: charity Registration: no information
Participants	62 ASA physical status I to IV, ≥ 70 years of age, with proximal end femur fracture undergoing surgery Excluded: more than 72 hours between fracture and surgery, weight < 40 kg, ASA physical status > IV, neurological disease (alcoholic or diabetic), allergy or contraindication to regional anaesthesia, severe hepatic or renal dysfunction, Mini Mental score < 15/30 Type of fracture: proximal end femur fracture Anaesthetic technique for surgery: spinal block Surgical technique: plate and screw (58%) or intermediate prosthesis (42%) Mean age: 82 years (range not stated) Percentage female: 86%. Length of follow‐up: in‐hospital
Interventions	Intervention: continuous femoral nerve block (N = 21) Comparator: no nerve block (N = 41)
Outcomes	Relevant to this review. Pain. Acute confusional state. Mortality. Pneumonia. Time to first mobilization after surgery. Cost of analgesic regimens. Opioid requirement. Pressure sores. Not relevant to this review. Transfused.
Notes	Conflict of interest: not mentioned DOI: 10.1016/j.annfar.2006.06.025 Study authors contacted 22 May 2015; no reply Sources obtained for risk of bias assessment. Journal article with results of the trial.