Needle-Free Injection of Lidocaine for Local Anesthesia Prior to Trigger Digit Injection
Status:
Completed
Trial end date:
2015-06-01
Target enrollment:
Participant gender:
Summary
Jet-injection (J-tip) is a rapid, minimally invasive delivery system that can be used for the
subdermal injection of lidocaine solution for anesthetic purposes. The device has been found
effective in pain reduction during IV catheterization in adults and children and lumbar
puncture in children when compared to placebo saline-jet injection. [1-4].
We believe that administering local anesthetic via J-tip prior to triamcinolone(40 mg/ml)
injection could mitigate pain that occurs during and immediately following injection while
preserving the post-injection pain relief of anesthetic injection. Furthermore, pre-placement
of the jet-injected local anesthetic may obviate the need for the inclusion of local
anesthetic into the triamcinolone injection. This would decrease the amount of fluid
injected, which could have positive pain modulation by decreased tissue disruption.
Objective: To evaluate the effectiveness of needle free jet injection (J-tip) administration
of 2% lidocaine in reduction of the pain experienced during trigger digit 40 mg/ml
triamcinolone injection.
Hypothesis: Needle free jet injection (J-tip) administration of 2% lidocaine will prove an
equal or superior means of pain reduction when compared to 2% lidocaine injection in the
setting of trigger digit triamcinolone injections.