Approach to Continuous Sciatic Nerve Block for Orthopedic Procedures in Day Surgery With Two Different Techniques
Regional Anesthesia Morbidity, Postoperative Pain
About this trial
This is an interventional treatment trial for Regional Anesthesia Morbidity
Eligibility Criteria
Inclusion Criteria:
- Patients candidates for orthopedic surgery of the lower limb in unilateral day-surgery with surgical incision in the distribution of the sciatic nerve
- Patients according to American Society of Anesthesiologists scale (ASA) I-II
- Age greater than 18 years
- Informed Consent
- Presence of a "caretaker" for the night and the next day.
Exclusion Criteria:
- Contraindications to regional anesthesia
- Patients ASA III-IV
- Patients receiving therapy for chronic pain
- Patients with: renal failure, coagulopathy, liver failure, peripheral neuropathy
- Refusal by the patient
Sites / Locations
- Department of Day Surgery Ospedale di Circolo Varese
Arms of the Study
Arm 1
Arm 2
Active Comparator
Active Comparator
Tibial nerve group
Tibial peroneal nerve group
In the TN (tibial nerve ) group probe will be placed in popliteal cave to identify the popliteal artery and laterally the tibial nerve. Identified the tibial nerve we will proceed , previous local anaesthesia, to insert a catheter medially to tibial branch of the sciatic nerve according to in plane approach.
In the TPN (tibial -peroneal nerve) group the probe will be placed in popliteal cave to identify the popliteal artery and laterally the tibial nerve. Afterwards, proceeding cranially with the probe according to "in plane" approach, we will identify the confluence of tibial with peroneal branch and in this point, previous local anaesthesia, we will position the catheter within the confluence of peroneal and tibial nerve.