This study aims to compare the hemodynamic impact of two anaesthetic strategies 'Regional anesthesia' versus 'General anesthesia' in leg and ankle fractures surgery.

Leg and/or ankle surgery is frequently performed under General Anesthesia (GA). GA is frequently associated with a high risk of hypotension with significant consequences.

Regional anesthesia could be an interesting alternative to GA in order to limit hemodynamic consequences, especially in elderly patients.

Furthermore, in the current state of Covid 19 crisis, regional anesthesia could provide solutions in preserving drugs for GA and exposing less medical staff on patient's airway.

Currently, unlike neuraxial anesthesia, few data deal with impact of peripheral RA and hemodynamic consequences.

The investigators hypothesize that the use of Regional anesthesia reduces the use of intraoperative vasopressor.

After ethical committee approval, a retrospective cohort of patients with lower limb traumatism, in Montpellier's University Hospital, was analyzed from 2016 to 2020. An informational note was given to all patients participating to the study.

Inclusion criteria

• ASA I - IV
• Ankle and/or leg fracture
• Operated between january 2016 and december 2020 at Montpellier

Exclusion criteria

- age < 18 years

• Surgical revision or surgery for pre-existing infection, tumour
• Intubated patient / unconscious patient
• Vasopressors before surgery
• Haemostasis disorder

NC