Effects of ultrasound-guided lumbar plexus and sacral plexus block combined with general anesthesia on the anesthetic efficacy and surgical outcomes in elderly patients undergoing intertrochanteric fracture surgery: a randomized controlled trial.

"Declarations Ethics approval and consent to participateAll methods of this study were carried out in accordance with relevant guidelines and regulations, which were approved by the Ethics Committee of Sichuan Province Orthopedic Hospital. Written informed consent was obtained from all subjects. Consent for publicationAll patients involved in this retrospective analysis provided written informed consent for the publication of their images, as well as any potentially identifiable information. Consent was also secured from the families of the patients. No data from prisoners or organs/tissues obtained from prisoners were used in this study. Documentary evidence of this consent is available and will be provided to the Editor upon request. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding None."