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Kombinert kontinuerlig og pulsert radiofrekvensablasjon for smertelindring og deres sikkerhet ved cervikal fasettsmerte

18. september 2026 oppdatert av: Atef Mohamed mahmoud, Fayoum University Hospital

Continuous Versus Combined Continuous and Pulsed Radiofrequency Ablation for Pain Relief and Safety in Cervical Facet-Mediated Pain: A Prospective Randomized Study

Continuous radiofrequency ablation (CRF) is the effective management for cervical facet joint pain but related with neuropathic symptoms in post-radiofrequency period. Additionally, pulse radiofrequency ablation (PRF) provides relief of neuropathic symptoms. However, the effect of CRF followed by PRF has yet to be validated

Studieoversikt

Detaljert beskrivelse

One prevalent and incapacitating problem seen in pain treatment therapy is chronic neck pain originating from the cervical facet joints. (1). Cervical facet joint pain was shown to be 49% common in a recent study (2). Depending on the level of the cervical facet joint, a facet referral pattern is characteristic of cervical facet joint discomfort (3,4). Radiofrequency (RF) ablation of the medial branch nerves is a proven, minimally invasive therapeutic option for long-lasting pain alleviation once a good response to diagnostic cervical medial branch blocks validates the diagnosis. Cervical facet joint pain has been successfully treated with traditional continuous radiofrequency ablation (RFA) of the cervical medial branches (5). Regretfully, even with sufficient analgesia, over 40% of patients undergoing RFA experience negative side effects, including post-procedural sensory side effects like numbness, dysesthesia, and hypersensitivity. 6,7). As a result, Continuous radiofrequency ablation (CRF) is the established minimally invasive treatment for chronic facet-mediated spinal pain once diagnostic medial branch blocks confirm the pain source, producing a thermal lesion at the target nerve to interrupt nociceptive transmission. Manchikanti et al. rated continuous RFA as Level II evidence for managing chronic spinal pain from the facet joints, reflecting its established role in clinical practice (6). However, despite its efficacy, more than 40% of patients undergoing CRF of the cervical medial branches experience post-procedural sensory side effects such as numbness, dysesthesia, and hypersensitivity (7,8) prompting interest in alternative radiofrequency strategies that preserve analgesic benefit while reducing these neuropathic effects. Combining continuous and pulsed radiofrequency (CPRF) has been proposed as a strategy to preserve the analgesic effect achieved with thermal ablation while reducing the incidence of post-procedural neuropathic side effects through the added neuromodulatory pulsed phase (9). However, there are no studies comparing the effectiveness and safety of pulse versus combined radiofrequency ablation in the cervical facet joint. This study was designed to compare the effectiveness and safety of continuous radiofrequency (CRF) alone versus combined continuous and pulsed radiofrequency (CPRF) in patients with chronic cervical facet joint pain.

Studietype

Intervensjonell

Registrering (Faktiske)

39

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

      • Al Fayyum, Egypt, 63512
        • Atef Mohamed mahmoud

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

30 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Patients age from (30-75) years.
  • American Society of Anesthesiologists (ASA) physical status class I or II
  • ≥ 4 points on the verbal numeric rating scale (VNRS) (scored from 0 = no pain to 100 = worst pain imaginable)) before RF stimulation of the cervical medial branches;
  • Patients presenting with a positive diagnostic cervical medial branche block defined as pain relief more than 50% from baseline.

Exclusion Criteria:

  • Repeated cervical radiofrequency ablation.
  • Patients presenting neck pain with radicular symptoms.
  • Previous cervical discectomy or fixation surgery.
  • Malignancy.
  • local infection
  • Psychological problem.
  • language barrier.
  • History of allergy to radio-opaque contrast solution,lidocaine or bupivacaine. - Inadequate medical proplem (hepatic, renal, cardiac) patients.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Flouroscopic guidance cervical medial branch continous RF ablation

After the patient lying prone we obtaining the posterior approach with PA view then lateral 15 degrees the C shaped edge of the cervical vertebrae were appeared and then we advance the needle till reaching this C shaped till hitting the bone then slipping the active tip slightly therafter we obtaining lateral view to determine the depth of the needle over the cervical pedicle.

patients in the continous radiofrequency group will be underwent continous radiofrequency at 80°C for 90 seconds for 2 cycles

Electromagnetic wave deposition near nerve tissue for pain management

Aktiv komparator: Flouroscopic guidance cervical medial branch combined pulsed and continous RF ablation

After the patient lying prone we obtaining the posterior approach with PA view then lateral 15 degrees the C shaped edge of the cervical vertebrae were appeared and then we advance the needle till reaching this C shaped till hitting the bone then slipping the active tip slightly therafter we obtaining lateral view to determine the depth of the needle over the cervical pedicle.

patients in the continous and pulsed group will be underwent continous and pulsed radiofrequency at 80°C for 90 seconds for 1 cycle followed by pulsed radiofrequency at 42°C for 120 seconds for 1 cycle

Electromagnetic wave deposition near nerve tissue for pain management

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
neck disability index pre and post-intervention between comparison groups
Tidsramme: 6 months

Neck disability index : It contains ten sectors: seven sectors related to everyday existing behaviors, two sectors correlated to pain, and one sector correlated to concentration. All items are marked from 0 to 5. A mark of 0 denotes the maximum level of function, while a mark of 5 indicates the bottom level of function. The maximum mark is 50, and a greater mark relates to an increased level of disability.

6 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Duration of pain relief
Tidsramme: One month, 3months,6 months, 12 months

The duration of pain relief was expressed as the period between pain relief and pain reoccurrence to 50% of pre-procedural pain level

One month, 3months,6 months, 12 months
Complications
Tidsramme: One month, 3 months, 6months, 12 months

Numbness, dysethesia, drop head syndrome, hypersensitivity, ataxia

One month, 3 months, 6months, 12 months
neck disability index pre and post-intervention between comparison groups
Tidsramme: One month

Neck disability index : It contains ten sectors: seven sectors related to everyday existing behaviors, two sectors correlated to pain, and one sector correlated to concentration. All items are marked from 0 to 5. A mark of 0 denotes the maximum level of function, while a mark of 5 indicates the bottom level of function. The maximum mark is 50, and a greater mark relates to an increased level of disability.

One month
neck disability index pre and post-intervention between comparison groups
Tidsramme: 3 months

Neck disability index : It contains ten sectors: seven sectors related to everyday existing behaviors, two sectors correlated to pain, and one sector correlated to concentration. All items are marked from 0 to 5. A mark of 0 denotes the maximum level of function, while a mark of 5 indicates the bottom level of function. The maximum mark is 50, and a greater mark relates to an increased level of disability.

3 months
neck disability index pre and post-intervention between comparison groups
Tidsramme: 12 months

Neck disability index : It contains ten sectors: seven sectors related to everyday existing behaviors, two sectors correlated to pain, and one sector correlated to concentration. All items are marked from 0 to 5. A mark of 0 denotes the maximum level of function, while a mark of 5 indicates the bottom level of function. The maximum mark is 50, and a greater mark relates to an increased level of disability.

12 months
VAS SCORE
Tidsramme: One month

of procedure, visual analog scale (VAS;0-100)

One month
VAS SCORE
Tidsramme: 3 months

of procedure, visual analog scale (VAS;0-100)

3 months
VAS SCORE
Tidsramme: 12 months

of procedure, visual analog scale (VAS;0-100)

12 months
VAS SCORE
Tidsramme: 6 months

of procedure, visual analog scale (VAS;0-100)

6 months

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Age
Tidsramme: 1 hour before procedure

in years

1 hour before procedure
Weight
Tidsramme: 1 hour before procedure

in Kilogram

1 hour before procedure
Height
Tidsramme: 1 hour before procedure

in centimeter

1 hour before procedure
Body mass index
Tidsramme: 1 hour before procedure

in kilogram/m2

1 hour before procedure

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Atef M Sayed, MD, Fayoum University

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. oktober 2021

Primær fullføring (Faktiske)

1. februar 2024

Studiet fullført (Faktiske)

1. februar 2024

Datoer for studieregistrering

Først innsendt

24. november 2022

Først innsendt som oppfylte QC-kriteriene

30. januar 2023

Først lagt ut (Faktiske)

9. februar 2023

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

23. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

18. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

Data will be given on resonable request

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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