Inclusion Criteria:  indications for surgical intervention on the hip, thigh, and knee joints  Exclusion Criteria:  patient refusal to use the proposed type of anesthesia, age <18 years, body mass index not > 39, physical status according to ASA 1-3, history of allergic reactions to the drugs used, coagulopathy, infectious skin lesions in the injection area, neurological or neuromuscular diseases, severe liver disease or renal failure, inability to cooperate with the patient.