Effect of the Early Ultrasound-guided Femoral Nerve Block Performed by Emergency Physicians on Pre-operative Opioids Usage in Patients With Proximal Femoral Fractures

Exclusion Criteria

• •Patient with multiples trauma
• •No surgical treatment decided by the orthopedic team
• •Prior femoral nerve block performed during pre-hospital time
• •Patient was not walking before the fracture
• •Patient has received opioids prior to ED admission (by home caregivers or as part of usual treatment) or buprenorphine or nalbuphine
• •Contraindications to opioids: acute respiratory failure, acute liver failure, epilepsy not controlled by treatment, allergy; documented severe intolerance to morphine
• •Contraindications to loco-regional anesthesia: constitutional or acquired coagulation disorder (anticoagulant treatment, acute hepatic failure), skin infection or wound near to the potential injection site, acute failure of an underlying disease, allergy to Ropivacaine or chlorhexidine
• •Patient already included in a type 1 interventional research protocol (RIPH1)
• •Patient under guardianship or curatorship
• •Patient deprived of liberty
• •Patient under court protection
• •Pregnant or breastfeeding patient