Comparison of Tuohy Needle and Quincke Needle During S1 Transforaminal Epidural Injection

Comparison of the Incidence of Intravascular Injection Using the Tuohy and Quincke Needles During Ultrasound-guided S1 Transforaminal Epidural Injection: a Prospective Randomized Controlled Study

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.

Inclusion Criteria:

• 1. Patient diagnosed with S1 radiculopathy because S1 root compression was confirmed on MRI and related symptoms 2. NRS of back and/or radiating pain score of 4 or more 3. Patients aged 19 years or older

Exclusion Criteria:

• 1. Cases in which lumbar count is expected to be difficult due to lumbarization, sacralization, or lumbosacral transition 2. When the S1 posterior foramen is not clearly identified on ultrasound 3. Malignancy 4. Systemic infections 5. Bleeding tendency 6. Contrast allergy 7. Pregnant Women 8. If you cannot read or agree to the consent form 9. If you are unable to sign the consent form yourself