The aims of this study are: * Evaluate the effectiveness of the pericapsulare blockade of the femoral nerve, the accessory obturator nerve and the obturator nerve in patients with pertrochanteric fractures of the femur, during the pre-operative period for patient positioning manoeuvres (sitting position for performing spinal anaesthesia, mobilisation on the operating bed, etc.); * Evaluate the consumption of opioids or hypnotics in the perioperative period, which are more responsible for the incidence of delirium in the elderly patient; * Evaluate the duration and quality of postoperative analgesia and well-being.
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Change of the numerical rating scale for pain (NRS) during movement of the affected limb (extension of 20°) 30 minutes after the PENG block
Timeframe: Change in NRS pre and 18 hours post performing the PENG block