Having an age greater than or equal to 18 years and less than 70 years
Having given written consent for participation in the study and the use of personal and medical data
Having a physical status of class I, II or III of the American Society of Anesthesiologists
You may not be if
Patients who expressed their refusal to participate in the study
Patients unable to express their non-objection to participation in the study
American Society of Anesthesiologists class \> III patients
Known allergy to local anesthetics
A contraindication to performing a peripheral nerve block (such as an acquired, constitutional or drug clotting disorder or infection at the nerve block injection site)
Morbid obesity (body mass index greater than 40 kg/m²)
Chronic use of opioids
Inability to use the patient controlled analgesia device
The existence of preoperative pain
History of neuropathy or neurological pathology
The existence of catastrophism or anxiety diagnosed preoperatively
