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J Hand Surg Am. 2017 Aug;42(8):618-622. doi: 10.1016/j.jhsa.2017.05.001. Epub 2017 May 24.

Needle-Free Jet Lidocaine Administration for Preinjection Anesthesia in Trigger Finger Injection: A Randomized Controlled Trial.

Author information

1
Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA.
2
Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA. Electronic address: pblazar@partners.org.

Abstract

PURPOSE:

To evaluate the efficacy of needle-free jet lidocaine (J-tip) administration for pain reduction in trigger finger corticosteroid injection compared with simultaneous lidocaine injection with corticosteroid.

METHODS:

A prospective randomized clinical trial was performed in which patients received either 0.25 mL of 2% lidocaine administered by J-tip just prior to 0.5 mL of corticosteroid injection by needle or 0.5 mL of 1% lidocaine and 0.5 mL of corticosteroid administered simultaneously through a needle for the treatment of trigger finger. Both the expected pain preinjection and the actual pain experienced postinjection were measured with a visual analog scale (VAS). Pain catastrophizing scale (PCS) scores were recorded before injection.

RESULTS:

The use of the J-tip demonstrated a lower mean actual pain, 3.3 VAS, compared with the control group, 4.6 VAS. Both study groups anticipated more pain than they actually experienced. The PCS did not correlate to pre- or post-injection scores.

CONCLUSIONS:

Needle-free jet administration of lidocaine reduces the pain associated with trigger finger injection. Patients anticipate more pain than they experience with trigger finger injection.

TYPE OF STUDY/LEVEL OF EVIDENCE:

Therapeutic I.

KEYWORDS:

Trigger finger; corticosteroid; injection; randomized controlled trial

PMID:
28549895
DOI:
10.1016/j.jhsa.2017.05.001
[Indexed for MEDLINE]

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