Vibration for Pain Reduction During Trigger Point Injection

Vibration Anesthesia for Pain Reduction During Trigger Point Injection to the Gastrocnemius

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03365674

Enrollment

Registered

2017-12-07

Start date

2017-09-30

Completion date

2018-04-30

Last updated

2019-02-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myofascial Pain Syndromes

Keywords

Myofascial Pain Syndromes, Gastrocnemius, Trigger points, Injections, Vibration

Brief summary

The aim of this study is to evaluate the effects of vibration anesthesia for reducing pain induced by trigger point injection of gastrocnemius. Sixty patients were randomized into the vibration or placebo group. In vibration groups, vibrator head was applied (100Hz) on the popliteal fossa, during the trigger point injection. In placebo group, same vibrator head was applied with switch-off sate. Then, a visual analog scale to evaluate the pain of trigger point injection and a five-point Likert scale for patients satisfaction were compared between the two groups.

Interventions

DEVICEVibration

Vibration applied with vibrator switch-on state (100Hz)

DEVICEPlacebo vibration

Vibrator applied with switch-off state

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

20 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patients who have the trigger point in the gastrocnemius and show referred pain.

Exclusion criteria

* Those with prior history of trigger point injection * Those with taking anti-platelet agent * Those with hemorrhage tendency * Pregnancy * Acute infection * those who were unable to understand a visual analog scale (VAS) or a Likert scale

Design outcomes

Primary

Measure	Time frame	Description
Visual analog scale	Immediately after trigger point injection (within 5 minute)	100 mm visual analog scale for evaluating the pain of trigger point injection

Secondary

Measure	Time frame	Description
5 point Likert scale for participant satisfaction	Immediately after trigger point injection (within 5 minute)	5 point Likert scale to answer Are you satisfied with the vibration application for reducing the pain of trigger point injection?
5 point Likert scale for repeated usage	Immediately after trigger point injection (within 5 minute)	5 point Likert scale to answer Will you use the vibration application again if the trigger point injection is repeated in the future?

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026