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The goal of this observational study is to determine the effect of adding adductor canal block to popliteal sciatic nerve block on patient-surgeon satisfaction, intraoperative sedation need, tourniquet pain, return time of motor block, and postoperative pain in patients undergoing hallux valgus correction surgery. The main question it aims to answer are:
Patients were randomly assigned into 2 groups as popliteal sciatic nerve block (Group PSB), popliteal sciatic nerve + adductor canal block (Group PSB + ACB). In this study, 52 patients scheduled for hallux valgus correction operations, in the American Society of Anesthesiologists I-III groups, between the ages of 18-80, were enrolled. Study was planned as a prospective, randomized and controlled trial. All patients were perfomed PSB with 10 ml 0.5% bupivacaine and 10 ml 2% prilocaine in the prone position, using ultrasonography and nerve stimulator. 10 ml of 0.5% bupivacaine and 10 ml of 2% prilocaine were administered to the patients in the ACB + PSB group in the supine position, in addition to PSB. Patients with coagulopathy, infection at the region site of regional blockade, allergy of local anesthetic drugs, peripheral neuropathy and neurogenic disorders affecting the lower extremities, peripheral artery disease, mental retardation and those who did not give consent to study were excluded. All patients were sedated with 1-2 mg midazolam and 50 µg fentanyl. After the blocks were performed , sensory -motor block onset time, surgery-tourniquet time, tourniquet pain, motor block time, pain onset time, first analgesic administration time (NPRS≥4) and analgesic administered were recorded. Anesthesiologists evaluating these data were blinded to group distribution .
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Popliteal Sciatic Nerve Block | Active Comparator | Patients are in the group undergoing popliteal sciatic block |
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| Adductor Canal Block | Active Comparator | Patients are in the group undergoing popliteal sciatic block + adductor canal block |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Popliteal Sciatic Nerve Block | Procedure | Patients undergoing popliteal sciatic block, the side where the procedure would be performed in the prone position was sterilized after appropriate antisepsis. After visualizing the popliteal artery in the popliteal fossa with the probe it was advanced proximally in a horizontal and minimally lateral position to determine the point of separation of the tibial and peroneal nerves from the sciatic nerve. Subcutaneous local anesthesia was applied at this point after the skin, and the stimulator needle was advanced towards the sciatic nerve in an in-plane approach, passing through the skin and subcutaneous tissue, and then the nerve stimulator was opened up to 1 mA. After observing motor movement in the foot, the stimulator was reduced to 0.3-0.5 mA, and after observing motor movements for duration of 0.1 ms, 10 ml of 0.5% bupivacaine + 10 ml of 2% prilocaine were administered to the target tissue |
| Measure | Description | Time Frame |
|---|---|---|
| Postoperative Pain | The Numeric Pain Rating Scale (NPRS). Between 1-10. The low values mean low pain and a better outcome. | Postoperative 24 hours |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ezgi Polat | İstanbul Medeniyet University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Istanbul Medeniyet University Faculty of Medicine Department of Anesthesiology and Reanimation | Istanbul | Kadikoy | 34720 | Turkey (Türkiye) |
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| Adductor canal block | Procedure | Patients in the group undergoing popliteal sciatic block + adductor canal block, with the extremity to be blocked slightly externally rotated, the anterior part of the thigh was prepared with the necessary antiseptic procedures while the patient was in the supine position. Using an ultrasound probe, the femoral artery was visualized by advancing the ultrasound probe distally, and the saphenous nerve was identified just lateral to the femoral artery, beneath the sartorius muscle. At the junction of the sartorius muscle and vastus medialis, 10 ml of 0.5% bupivacaine + 10 ml of 2% prilocaine were applied to the periphery of the saphenous nerve. Subsequently, the patient was turned prone, and a popliteal sciatic block was performed. |
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