Fluoroscopy-Guided Lumbar Facet Block for Chronic Low Back Pain
Evaluation of Functionality and Pain After Fluoroscopy-Guided Lumbar Facet Block: A Prospective and Longitudinal Study
This prospective, longitudinal observational study evaluates functional recovery, pain intensity, and lumbar mobility after a fluoroscopy-guided lumbar facet joint block in patients with chronic lumbar facet syndrome. Forty patients receiving standard-of-care injections (ropivacaine 0.2% and methylprednisolone) will be observed. Outcomes are measured at baseline and 30 days post-intervention. The primary outcome is the change in Oswestry Disability Index (ODI). Secondary outcomes include changes in the Numeric Rating Scale (NRS) and the modified Schober test.
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Chronic low back pain due to facet joint arthropathy is a common cause of disability.
Fluoroscopy-guided facet joint blocks are widely used in standard practice, but evidence quantifying objective functional and biomechanical recovery beyond pain reduction is limited.
This single-center, prospective, observational, longitudinal study aims to objectively quantify functional recovery. Forty patients aged 18-75 years with clinically and radiologically confirmed lumbar facet syndrome will be observed. The intervention (unilateral fluoroscopy-guided injection of ropivacaine 0.2% [0.5-1 mL] and methylprednisolone into the affected facet joint) is performed strictly as part of routine clinical care, independent of study inclusion.
Assessments occur at baseline (T0) and 30 days post-injection (T1). The primary outcome is the change in Oswestry Disability Index (ODI) score. Secondary outcomes are changes in Numeric Rating Scale (NRS) pain scores and the modified Schober test (cm). Adverse events and procedural safety are recorded. The study aims to provide preliminary effect estimates to inform future controlled trials.
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Paola Estefania Vallejo Mora, MD
- Telefonnummer: +52 56 3125 6766
- E-Mail: paovallejo100177@gmail.com
Studieren Sie die Kontaktsicherung
- Name: Sergio Tenopala Villegas, MD
- Telefonnummer: +52 55 5412 0375
- E-Mail: drstenopala@yahoo.com.mx
Studienorte
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Mexico City
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Mexico City, Mexico City, Mexiko, 03229
- Centro Médico Nacional 20 de Noviembre, ISSSTE
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Kontakt:
- Paola Estefania Vallejo Mora, MD
- Telefonnummer: +52 56 3125 6766
- E-Mail: paovallejo100177@gmail.com
-
Kontakt:
- Sergio Tenopala Villegas, MD
- Telefonnummer: +52 55 5412 0375
- E-Mail: drstenopala@yahoo.com.mx
-
-
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Probenahmeverfahren
Studienpopulation
Adults aged 18-75 years with chronic low back pain (>3 months) due to lumbar facet syndrome confirmed by clinical examination and imaging, presenting to the Algology outpatient clinic.
Beschreibung
Inclusion Criteria:
- Age 18-75 years
- Clinical and radiological diagnosis of lumbar facet syndrome
- Low back pain duration >3 months
- Baseline NRS pain score ≥4/10
- Signed informed consent for the procedure and study participation
- Cognitive capacity to independently complete the Oswestry Disability Index
Exclusion Criteria:
- Radicular pain or confirmed disc herniation with neural compression
- Coagulopathy or use of anticoagulants not discontinued appropriately
- Active systemic or local infection
- Known allergy to local anaesthetics or corticosteroids
- Pregnancy or lactation
- Previous lumbar spine surgery at the same level
- Inability to comply with follow-up schedule
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Beobachtungsmodelle: COHORT
- Zeitperspektiven: PROSPECTIVE
Anzahl der Gruppen / Kohorten
Kohorten und Interventionen
Gruppe / KohorteGruppe / Kohorte |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Facet Block
Single group receiving standard-of-care fluoroscopy-guided lumbar facet joint injection of ropivacaine 0.2% (0.5-1 mL) and methylprednisolone into the affected facet joint(s). |
Under fluoroscopic guidance, a 20G Quincke needle is placed into the target lumbar facet joint or onto the adjacent medial branch. An arthrogram is performed with 0.3 to 0.5 mL of non-ionic contrast to confirm correct dispersion and exclude vascular/intrathecal uptake. Subsequently, 0.5 to 1 mL of a mixture containing ropivacaine 0.2% and methylprednisolone is injected per level. Performed on an outpatient basis under standard monitoring. |
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in Oswestry Disability Index (ODI)
Zeitfenster: Baseline (pre-injection) and 30 days post-injection
|
The Oswestry Disability Index (ODI) is a 10-item questionnaire that measures functional disability in daily activities (0% = no disability, 100% = severe disability). The primary outcome is the change in ODI score from baseline to 30 days. A reduction of ≥10 points is considered clinically significant. |
Baseline (pre-injection) and 30 days post-injection
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in Numeric Rating Scale (NRS) pain score
Zeitfenster: Baseline, immediately post-procedure, and 30 days post-injection
|
Pain intensity measured using an 11-point Numeric Rating Scale (0 = no pain, 10 = worst imaginable pain). A clinically significant reduction is defined as at least a 50% decrease from the baseline score. |
Baseline, immediately post-procedure, and 30 days post-injection
|
|
Change in modified Schober test (lumbar flexion mobility)
Zeitfenster: Baseline and 30 days post-injection
|
The modified Schober test measures lumbar flexion range (cm) to evaluate biomechanical mobility. An increase of at least 5 cm indicates a functional range. |
Baseline and 30 days post-injection
|
|
Incidence of adverse events
Zeitfenster: Immediately after procedure up to 30 days post-injection
|
Record of any adverse events including pain at injection site, transient exacerbation of pain, allergic reaction, inadvertent dural puncture, spinal haematoma, or nerve root injury. |
Immediately after procedure up to 30 days post-injection
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Ermittler
Ermittler
- Hauptermittler: Sergio Tenopala Villegas, MD, Centro Médico Nacional 20 de Noviembre, ISSSTE
- Unterermittler: Paola Estefania Vallejo Mora, MD, Centro Médico Nacional 20 de Noviembre, ISSSTE
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- RAI.CMN.373.2026
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
De-identified individual participant data underlying the results reported in this study, along with the full analysis code, will be made available following article publication via the corresponding author's public GitHub repository.
IPD-Sharing-Zeitrahmen
Beginning at the time of article publication, with no end date.
IPD-Sharing-Zugriffskriterien
Data and code will be publicly available with no access restrictions via GitHub.
Art der unterstützenden IPD-Freigabeinformationen
- STUDIENPROTOKOLL
- ANALYTIC_CODE
- CSR
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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