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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00756301
Other study ID # HUM00002610
Secondary ID 16893
Status Completed
Phase N/A
First received September 19, 2008
Last updated June 5, 2012
Start date June 2009
Est. completion date September 2011

Study information

Verified date June 2012
Source Stanford University
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Interventional

Clinical Trial Summary

Interventional spine procedures are an increasingly popular means of diagnosis and treatment of spine disease. By convention, local anesthetics are used at the beginning of these procedures with the goal of minimizing pain. However, the infiltration of the local anesthetic is painful. This initial painful stimulus can heighten pain awareness and cause anxiety or excessive movement during the procedure.

The purpose of this study is to determine patient discomfort with administration of cutaneous local anesthetic prior to interventional spine procedures compared to no anesthetic administration for different gauge procedural needles. Another purpose is to determine patient discomfort with administration of local anesthetic by traditional technique compared to an alternative technique and to develop a standardized technique and criteria for local anesthetic administration during spine injection procedures that minimizes patient pain, and may help reduce the overall risk of these procedures.

We plan to enroll a total of 200-300 subjects coming to Stanford for symmetric bilateral single injections.


Description:

Any patient referred by their treating physician for symmetric bilateral single injections (for example, bilateral transforaminal epidural injections, bilateral facet injections, or bilateral SI joint injections, etc.) will provide written informed consent before the procedure is conducted.

The contents of the consent forms will be used to explain the study to patients. Patients with pregnancy, coagulopathy, systemic infection, allergy to contrast dye, mentally disabled or those whom are unable to give informed consent will be excluded from the study.

Three different cutaneous local anesthetic techniques will be investigated, hereafter referred to as (a), (b), and (c), and described in detail here:

1. Local anesthetic injected with a 27-gauge 1.25" needle using traditional technique- formation of a subcutaneous wheal with 0.25cc 1% Lidocaine, then 0.75cc 1% Lidocaine injected along the planned needle trajectory to the hub depth of the 27-gauge needle.

2. Local anesthetic injected with a 27-gauge 1.25" needle using an alternative technique- needle is immediately inserted in the planned needle trajectory to the hub depth. Then 1cc 1% Lidocaine is injected slowly as the needle is withdrawn to the skin creating a small point wheal at the skin prior to removal of the needle.

3. No local anesthetic is used.

1. Patients are randomly assigned to receive one of three possible combinations of anesthetic techniques (one on each side i.e. (a) & (b), (a) &(c), (b)&(c). Randomized assignment will occur on a rotating basis, i.e.; patient #1 will receive (a)&(b), patient #2 will receive (a)&(c), patient #3 will receive (b)&(c), and so on. Regardless of technique (a), (b), or (c), the following four steps are followed.

2. After the starting point of the procedure is identified, before placement of any needles, we ask the patient to take note of any subsequent discomfort or pain.

3. Complete the designated anesthesia technique.

4. Next, place the treatment needle to a depth of 1 inch. Needle size is determined by the injectionist at the time of the procedure, based on what is determined to be best suited for the patient and the procedure from the following quinke point needles: 26-gauge 3.5", 25-gauge 3.5", or 22-gauge 3.5" needle. The same size needle will be used on each side.

5. Finally, we ask the patient to rate on a 10 point verbal analog scale the amount of pain they experienced during this time.

6. Repeat steps 2 thru 5 for the second side of the procedure.

All data is collected during the procedure. There will be no follow-up visits after the procedure.


Recruitment information / eligibility

Status Completed
Enrollment 55
Est. completion date September 2011
Est. primary completion date August 2011
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:1. Any patients referred by their treating physician for symmetric bilateral single injections (for example, bilateral transforaminal epidural injections, bilateral facet injections, or bilateral SI joint injections, etc.).

2.Ability to give informed consent.

Exclusion Criteria:1.Pregnancy 2.Coagulopathy 3.Systemic infection 4.Allergy to contrast dye 5.Mentally disabled or those whom are unable to give informed consent 6.Those whom are unable to give informed consent in English 7.Prisoner

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Supportive Care


Related Conditions & MeSH terms


Intervention

Other:
Lidocaine local anesthesia- Alternative
Local anesthetic (Lidocaine) injected using traditional technique (involves injecting Lidocaine into the skin first, then into the deeper tissues).

Locations

Country Name City State
United States Stanford Univiersity Redwood California

Sponsors (2)

Lead Sponsor Collaborator
Stanford University University of Michigan

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Pain related to cutaneous anesthesia method At the time of the injection No
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