Electronic ISSN 2287-0237

VOLUME

COMPARISON OF EPIDURAL STEROID INJECTION BETWEEN L5-S1 RETRODISCAL TECHNIQUE AND S1 TRANSFORAMINAL TECHNIQUE IN L5-S1 SPINAL STENOSIS WITH S1 RADICULAR PAIN

FEBRUARY 2017 - VOL.13 | ORIGINAL ARTICLE
OBJECTIVE

To study the efficacy of L5-S1 retrodiscal technique compared to S1 transforaminal technique in L5-S1 spinal stenosis with S1 radicular pain management.

MATERIALS AND METHODS

A randomized, double-blinded controlled trial was conducted in 40 patients undergoing single-level lumbar epidural steroid injection under C-Arm fluoroscope. The tip of needle in retrodiscal group (R-group) was posterior to L5-S1 disc and the tip of needle in S1 transforaminal group (S-group) was in S1 foramen. All participants were followed up in 2 week, 2 and 3 months.

RESULTS

Twenty adults were enrolled and assigned in two groups equally. There was no difference in demographic data. S-group had lower average VAS than R-group in 2 and 3-month follow-up. Also, number of patients, who had at least 50% VAS reduction, was higher in S group in every follow-up. A comparison of the efficacy was defined by reducing 50 points of VAS (visual analog scale). p < 0.05 was considered as statistically significant.

CONCLUSION

S1 transforaminal technique provided an advantage over L5-S1 retrodiscal technique in reducing S1 radicular pain. (Clinicaltrials.in.th. number, TCTR 20150127001)

MEDIA
Figure 1
An anterolateral view of the tip of the needle was placed at the Left S1 foramen and contrast spread to S1 nerve root.
Figure 2
A lateral view of the a tip of the needle placed at the Left S1 foramen
Figure 3
An anterolateral view of the a tip of needle placed at the Left L5-S1 foramen (retrodiscal technique)
Figure 4
A lateral view of the a tip of the needle placed at the Left L5-S1 foramen (retrodiscal technique)
Figure 5
Enrollment, Randomization,Treatment,and 3 months Follow-up.
Figure 6
Mean visual analog pain score: between-group comparison.
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