Neck Pain Clinical Trial
Official title:
Randomized Study Comparing the Accuracy and Specificity of Cervical Facet Medial Branch Blocks With 0.25 ml and 0.5 ml of Local Anesthetic
Verified date | August 2009 |
Source | Johns Hopkins University |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Federal Government |
Study type | Interventional |
Cervical facet arthropathy is a common cause of chronic neck pain. The "gold standard" for diagnosis is either blocking the facet joints, or more commonly blocking the medial branch nerves that innervate the joints. However, many studies have found a high false-positive rate when the nerves are blocked using 0.5 ml of local anesthetic. We will randomize patients to receive either cervical facet medial branch blocks with 0.25 ml of local anesthetic and contrast, or 0.5 ml. We will then do a CT scan to determine the accuracy and specificity of each block. Our hypothesis is that using the higher volume (0.5 ml) might be responsible for the high false-positive rate.
Status | Completed |
Enrollment | 20 |
Est. completion date | April 2009 |
Est. primary completion date | April 2009 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Age > 18 years - Chronic neck pain > 3 months - Paraspinal tenderness Exclusion Criteria: - Absence of radicular symptoms - No bleeding diathesis - Contrast allergy |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Walter Reed Army Medical Center | Washington | District of Columbia |
Lead Sponsor | Collaborator |
---|---|
Johns Hopkins University | Army Regional Anesthesia and Pain Management Initiative |
United States,
Dreyfuss P, Schwarzer AC, Lau P, Bogduk N. Specificity of lumbar medial branch and L5 dorsal ramus blocks. A computed tomography study. Spine (Phila Pa 1976). 1997 Apr 15;22(8):895-902. — View Citation
Lord SM, Barnsley L, Bogduk N. The utility of comparative local anesthetic blocks versus placebo-controlled blocks for the diagnosis of cervical zygapophysial joint pain. Clin J Pain. 1995 Sep;11(3):208-13. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Accuracy of injections | Immediately after nerve blocks. | No | |
Secondary | Pain relief after nerve blocks | 8 hours after blocks | No |
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