Comparison of Transforaminal vs. Parasagittal Interlaminar Epidural Injection

Keimyung University

Status: Completed

Conditions: Spinal Stenosis

Treatments: Procedure: epidural steroid (dexamethasone) injection

Study type: Interventional

Funder types: Other

Identifiers

NCT02838615

2016-05-029

Details and patient eligibility

About

The purpose of this study is to compare the clinical efficacy, incidence of ventral epidural spreading and provocation of concordant paresthesia, amount of radiation exposure and total procedure time between transforaminal and parasagittal interlaminar epidural injection.

Full description

Participants were randomly allocated to receive either parasagittal interlaminar or transforaminal ESI.

Investigators obtained clinical data including age, gender, duration of symptoms, predominant symptoms (axial pain vs. leg pain), severity of neurogenic intermittent claudication (NIC) and degree of depression. Depression was assessed by the Korean version of the Beck Depression Inventory (BDI). The BDI is a standardized questionnaire to assess cognitive, affective, and somatic symptoms of depression. All data were obtained before performing ESI.Data about anterior epidural spreading and presence of concordant pain provocation were obtained during fluoroscopic guided parasagittal interlaminar or transforaminal ESI. Also total procedure time and amount of radiation exposure were checked. Investigators observed the epidural spread pattern after a 2 ml injection of contrast material, confirmed anterior epidural spread with a lateral view, and asked the participants if they had any concordant pain provocation or not. The participants were asked if the pain was in the same distribution as their original pain (concordant) or dissimilar or absent in both quality and location.

Investigators used the numerical rating scale (NRS) as well as the Korean version of the Oswestry Disability Index (ODI) to evaluate clinical efficacy in terms of reducing pain and functional improvement at pretreatment and 2 weeks after the ESI series. ESI was performed twice with a 2 weeks interval before the final treatment outcome evaluation with the NRS and ODI. All patients reported average severity of their symptoms over the previous 1 week. A score of 0 on the NRS represents no pain, and a score of 10 represents the worst pain imaginable. The Korean version of the ODI (0-50) was used to assess functional improvement.

Enrollment: 56 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• central spinal stenosis
• herniated nucleus pulposus.

Exclusion criteria

• Lateral spinal stenosis
• Internal disc disruption

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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56 participants in 2 patient groups

epidural steroid injection

Active Comparator group

Description:

TF epidural steroid (dexamethasone) injection

Treatment:

Procedure: epidural steroid (dexamethasone) injection

IL epidural steroid injection

Active Comparator group

Description:

PS interlaminar epidural steroid(dexamethasone) injection

Treatment:

Procedure: epidural steroid (dexamethasone) injection