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Recently, Park et al. introduced a new technique for performing S1 TFESI using ultrasound. S1 TFESI using ultrasound can be considered to overcome the disadvantages of exposure to radiation. We hypothesized that the frequency of intravascular injection differs depending on the type of needle during S1 TFESI under ultrasound guidance.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Tuohy needle group | Experimental | Ultrasound-guided S1 transforaminal epidural block with Touhy needle |
|
| Quincke needle group | Active Comparator | Ultrasound-guided S1 transforaminal epidural block with Quincke needle |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Tuohy needle group | Device | Ultrasound-guided S1 transforaminal epidural block with Touhy needle |
|
| Measure | Description | Time Frame |
|---|---|---|
| incidence of intravascular injection | incidence of intravascular injection during S1 transforaminal epidural block | 1 minute after finishing the procedure |
| Measure | Description | Time Frame |
|---|---|---|
| time required to complete S1 transforaminal epidural block | time required to complete S1 transforaminal epidural block | Baseline, 1 second after the completion of the procedure |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Do-Hyeong Kim | Contact | 0220196691 | breadfans@yuhs.ac |
| Name | Affiliation | Role |
|---|---|---|
| Do-Hyeong Kim | Yonsei University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| GangnamSeverance Hospital | Recruiting | Seoul | South Korea |
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Parallel assignment
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Double
| Quincke needle group | Device | Ultrasound-guided S1 transforaminal epidural block with Quincke needle |
|