Comparison of Distraction Methods for Pain Relief of Trigger Finger Injection

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the best distraction mechanism during trigger finger injection in the outpatient setting. Temporary discomfort from the needle prick is highly feared by patients and is often accompanied by significant acute pain and distress during routine corticosteroid injection in the orthopedic outpatient setting. This study aims to examine 4 different distraction methods and their efficacy in reducing perceived pain, which will be evaluate using the VAS (visual analog pain score.) The three distraction methods will be ethyl chloride spray, adjacent pinch, ethyl chloride spray and pinch, and screen or looking away method.

Official Title
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Comparison of Distraction Methods for Pain Relief of Trigger Finger Injection

Conditions
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Trigger Finger

Intervention / Treatment
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* Drug: Ethyl chloride spray
* Procedure: Pinching
* Procedure: No Site of Procedure


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of Trigger Finger Exclusion Criteria: Allergies to lidocaine, betamethasone, infection, pregnancy, 3 prior injection to the digit

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 99 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: First Group<br>Skin cooling with ethyl chloride spray will be used for 5 seconds prior to injection | Drug: Ethyl chloride spray<br>* Skin cooling with ethyl chloride spray 5 seconds prior to injection<br>* Other names: Bethamethasone;|
| Experimental: Second Group<br>The skin between the distal palmar crease and the palmo-digital crease and the palmo-digital crease will be pinched for 5 seconds prior to injection | Procedure: Pinching<br>* Skin between the distal palmar crease and the palmo digital crease will be pinched for 5 seconds prior to injection<br>|
| Experimental: Third Group<br>Skin cooling with ethyl chloride spray will be used for 5 seconds prior to injection as well as a second pinch to the skin between the distal palmar crease and the palmo digital crease | Drug: Ethyl chloride spray<br>* Skin cooling with ethyl chloride spray 5 seconds prior to injection<br>* Other names: Bethamethasone;Procedure: Pinching<br>* Skin between the distal palmar crease and the palmo digital crease will be pinched for 5 seconds prior to injection<br>|
| Experimental: Fourth Group<br>Subjects will sit behind a screen with a small opening large enough to introduce the injection hand. They will not see any of the procedure. | Procedure: No Site of Procedure<br>* Subjects will sit behind a screen with a small opening large enough to introduce the injected hand. They will not see any of the procedure<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Visual Analog Scale (VAS) Score | A 10-cm scale will be shown to the patients, and they will be asked to choose the proper number, with 1 representing no pain and 10 symbolizing the most pain imaginable | 1 Minute, 24 Hours |