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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
284
Ultrasound-guided S1 transforaminal epidural block with Touhy needle
Ultrasound-guided S1 transforaminal epidural block with Quincke needle
GangnamSeverance Hospital
Seoul, South Korea
RECRUITINGincidence of intravascular injection
incidence of intravascular injection during S1 transforaminal epidural block
Time frame: 1 minute after finishing the procedure
time required to complete S1 transforaminal epidural block
time required to complete S1 transforaminal epidural block
Time frame: Baseline, 1 second after the completion of the procedure
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