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Ultrasound-guided Cervical Medial Branch Blocks

NCT ID: NCT04852393

Last Updated: 2023-11-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-05-05

Study Completion Date

2023-10-01

Brief Summary

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In this study we will prospectively examine the safety and clinical effects of ultrasound-guided cervical medial branch blocks.

Detailed Description

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While several clinical trials have found that ultrasound guidance provides similar accuracy to fluoroscopy and reduces performance times for cervical medial branch blocks, larger studies documenting safety-related outcomes are lacking. In addition, although cervical medial branch blocks are an accepted tool to diagnose neck pain originating from the cervical facets, there are reports of long-lasting analgesic effects in a subset of patients, suggesting that these blocks may have long-term benefits. We therefore propose to prospectively examine the incidence of adverse events, as well as the clinical long-term effects of ultrasound-guided cervical medial branch blocks, in a cohort of pain clinic patients undergoing these procedures as part of their usual care.

Conditions

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Neck Pain Cervical Spondylosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Block

Patients undergoing ultrasound-guided cervical medial branch blocks as part of their usual care

Block

Intervention Type PROCEDURE

cervical medial branch block

Interventions

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Block

cervical medial branch block

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Consenting patients over 18 years of age undergoing cervical medial branch blocks as part of their usual care and who have a pain intensity of at least 5/10 (at rest or on movement) and a pain duration of at least 4 months.

Exclusion Criteria

* Inability to communicate or complete follow up questionnaires
* Known bleeding disorder or coagulopathy
* Patients on antiplatelet medication other than aspirin and those on anticoagulants (coumadin, AT III agents)
* Inability to visualize targeted structures on ultrasound
* Presence of acute radiculopathy of new onset neurological symptoms in the upper extremities
* Patients with bilateral neck pain if only one side is treated
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Montreal General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Roderick Finlayson

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Roderick J Finlayson, MD

Role: PRINCIPAL_INVESTIGATOR

University of British Columbia

John-Paul B Etheridge, MD

Role: PRINCIPAL_INVESTIGATOR

University of British Columbia

Locations

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Bill Nelems Pain and Research Centre

Kelowna, British Columbia, Canada

Site Status

Countries

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Canada

References

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Finlayson RJ, Etheridge JB, Godard R, Kaseweter K, Etheridge JP, Curatolo M. Do cervical medial branch blocks have a therapeutic role? a prospective cohort study. Reg Anesth Pain Med. 2025 May 28:rapm-2025-106457. doi: 10.1136/rapm-2025-106457. Online ahead of print.

Reference Type DERIVED
PMID: 40441772 (View on PubMed)

Etheridge JB, Finlayson RJ, Venter J, De Villiers F, Etheridge JP, Wakefield R, Watanitanon A. Prospective evaluation of the safety of ultrasound-guided cervical medial branch blocks using the in-plane technique. Reg Anesth Pain Med. 2025 Mar 5;50(3):237-242. doi: 10.1136/rapm-2024-105296.

Reference Type DERIVED
PMID: 38508589 (View on PubMed)

Other Identifiers

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2020-21-105-H

Identifier Type: -

Identifier Source: org_study_id