The Effect of Leg Position on the Sciatic Nerve on Sonogram
- Conditions
- Sciatic Nerve Block
- Registration Number
- NCT03678961
- Lead Sponsor
- Asan Medical Center
- Brief Summary
Little is known about which posture of lower extremity makes it easier to access to the sciatic nerve. In this study, the investigators aimed to identify the most appropriate positioning of the lower extremity during anterior-approach ultrasound-guided sciatic nerve block.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 45
- ASA PS 1-3
- patients undergoing knee surgery requiring peripheral nerve block
- patients who refuse to participate in the study
- BMI > 40 kg/m2
- patients who have congenital abnormality on leg
- patients who have surgery or trauma on hip/knee
- patients who cannot move freely due to the contracture
- patients who are judged ineligible by the medical staff to participate in the study for other reasons
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Visibility of sciatic nerve during 10 minutes of anesthesia induction Visibility of sciatic nerve at each position assessed using a scoring system (0, no nerve identified; 1, nerve identified with a high probability; 2, nerve identified, but most of it not visible; 3, nerve identified, more than 50% of its borders can be precisely distinguished from surrounding structures; 4, nerve completely visible, but fascicles poorly defined; 5, nerve completely visible and multiple fascicles identifiable.)
- Secondary Outcome Measures
Name Time Method Depth of sciatic nerve during 10 minutes of anesthesia induction Distance from skin to sciatic nerve at each position
Trial Locations
- Locations (1)
Asan Medical Center
🇰🇷Seoul, Korea, Republic of
Asan Medical Center🇰🇷Seoul, Korea, Republic of