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Comparison of Efficacy of Caudal Versus Transforaminal Epidural Steroid Injections in Unilateral S1 Nerve Root Pain: A Randomized Controlled Trial

12. oktober 2026 opdateret af: Ahmad, University of Health Sciences Lahore

This study compares caudal and transforaminal epidural steroid injections for treating unilateral S1 nerve root pain. It evaluates pain relief, functional improvement, treatment satisfaction, quality of life, and complications over 12 months.

Studieoversigt

Detaljeret beskrivelse

Unilateral S1 nerve root pain is a common manifestation of lumbosacral radiculopathy and may persist despite conservative treatment. Epidural steroid injections are used as an interventional treatment option for patients with persistent radicular pain. Different approaches to epidural steroid delivery may produce different patterns of pain relief and functional improvement, but their comparative clinical effectiveness in patients with unilateral S1 nerve root pain remains an important clinical question.

This randomized controlled trial was designed to compare two approaches to epidural steroid administration: caudal epidural steroid injection and transforaminal epidural steroid injection. The study focuses on patients with unilateral S1 nerve root pain associated with imaging-confirmed nerve root compression who have persistent symptoms despite conservative management.

The principal purpose of the study is to characterize and compare the clinical response associated with the two injection approaches over an extended follow-up period. The study evaluates changes in pain and functional status together with patient-reported quality of life and satisfaction with treatment. The study also considers the duration and sustainability of treatment effects and documents treatment-related complications and adverse events.

The comparison is intended to provide clinical information regarding the relative effectiveness and safety of the two epidural injection approaches in the management of unilateral S1 nerve root pain. Assessment across multiple follow-up points allows the study to examine both the early response following treatment and the persistence of clinical effects over time.

The study uses a parallel-group randomized controlled design in which eligible participants are allocated to receive either caudal or transforaminal epidural steroid injection. The study procedures, eligibility criteria, outcome measures, follow-up schedule, and statistical methods are described in their respective sections of the clinical trial record.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

120

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

    • Punjab Province
      • Lahore, Punjab Province, Pakistan, 54000
        • Ghurki Trust & Teaching Hospital
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Age 18-75 years.
  • Clinical symptoms and MRI confirmation of unilateral S1 nerve root compression.
  • Pain duration > 6 weeks despite conservative therapy.

Exclusion Criteria:

  • Previous epidural steroid injection in the past 6 months.
  • Significant neurological deficits requiring immediate surgery.
  • Coagulopathy or current anticoagulant therapy.
  • Allergy to corticosteroids or contrast agents.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Group A: Caudal Epidural Steroid Injection (CEI)

Participants receive a caudal epidural steroid injection through the sacral hiatus under fluoroscopic guidance. A corticosteroid combined with a local anesthetic is administered into the epidural space, with contrast dye used to confirm proper needle placement and epidural distribution.

A caudal epidural steroid injection is administered through the sacral hiatus into the epidural space under fluoroscopic guidance. Corticosteroid combined with a local anesthetic is administered, and contrast dye is used to confirm proper needle placement.

Aktiv komparator: Group B: Transforaminal Epidural Steroid Injection (TFI)

Participants receive a transforaminal epidural steroid injection targeting the affected S1 neural foramen under fluoroscopic guidance. A corticosteroid and local anesthetic mixture is administered, with contrast dye used to confirm proper epidural distribution.

A transforaminal epidural steroid injection is administered into the affected S1 neural foramen under fluoroscopic guidance. A steroid and local anesthetic mixture is administered, with contrast dye used to confirm proper epidural distribution.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Pain intensity measured by Visual Analogue Scale (VAS)
Tidsramme: Baseline, 1 week, 1 month, 3 months, 6 months, and 12 months after intervention

Pain intensity will be assessed using the Visual Analogue Scale (VAS) to compare pain relief between caudal epidural steroid injection and transforaminal epidural steroid injection groups.

Baseline, 1 week, 1 month, 3 months, 6 months, and 12 months after intervention

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Oswestry Disability Index (ODI)
Tidsramme: Baseline, 1 month, 3 months, 6 months, and 12 months after intervention

Functional disability will be assessed using the Oswestry Disability Index (ODI) to compare functional outcomes between the caudal epidural steroid injection and transforaminal epidural steroid injection groups.

Baseline, 1 month, 3 months, 6 months, and 12 months after intervention
Health-Related Quality of Life measured by SF-36
Tidsramme: Baseline, 1 month, 3 months, 6 months, and 12 months after intervention

Health-related quality of life will be assessed using the Short Form-36 (SF-36) questionnaire to compare quality-of-life outcomes between the two treatment groups.

Baseline, 1 month, 3 months, 6 months, and 12 months after intervention
Duration of Pain Relief
Tidsramme: From 1 week through 12 months after intervention

The duration and sustainability of pain relief following epidural steroid injection will be assessed and compared between the two treatment groups.

From 1 week through 12 months after intervention
Procedure-Related Complications
Tidsramme: From intervention through 12 months after intervention

Procedure-related complications will be recorded and compared between participants receiving caudal and transforaminal epidural steroid injections.

From intervention through 12 months after intervention
Change in Functional Outcome Over 12 Months
Tidsramme: Baseline, 1 month, 3 months, 6 months, and 12 months after intervention

Changes in functional status over the follow-up period will be assessed using the Oswestry Disability Index (ODI) and compared between the two treatment groups.

Baseline, 1 month, 3 months, 6 months, and 12 months after intervention

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Studiestol: Dr. Kashif Hussain, Ghurki Trust & Teaching Hospital

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

5. januar 2027

Primær færdiggørelse (Anslået)

2. februar 2028

Studieafslutning (Anslået)

5. februar 2028

Datoer for studieregistrering

Først indsendt

16. september 2026

Først indsendt, der opfyldte QC-kriterier

16. september 2026

Først opslået (Faktiske)

22. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

16. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

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