There are several studies that try to identify the ideal anesthetic for the management and control of pain in hip fracture surgery in the elderly. The optimum would be to use an anesthetic with the lowest possible latency, since this will favor the start of surgery. And, at the same time, with a more lasting analgesia with the least motor impairment. Therefore, it is essential to collect data on efficacy (effective block that allows us to mobilize the patient), latency, and analgesic scales appropriate to the cognitive state of the study sample.
Prospective, low-level, non-commercial intervention, comparative clinical trial (phase IV) of balanced, randomized groups, to compare the analgesic efficacy of the local anesthetics Ropivacaine and Levobupivacaine in peripheral nerve block in hip fracture surgery in the elderly .