Effects of TPR and Z Techniques on Pain and Drug Leakage in Intramuscular Injections

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-40
SponsorCumhuriyet University

About this trial

This randomized, triple-blind clinical trial compares the effectiveness of Z-track and TPR (traction-pressure-release) techniques in reducing pain and medication leakage during ventrogluteal intramuscular injections. Pain is measured using VAS, and leakage is assessed with a millimeter scale. The study aims to identify a more efficient, less painful injection method.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Aged 16-40

Prescribed diclofenac sodium

No communication impairments

Healthy ventrogluteal muscles without sensory issues

Disqualifiers

Wounds, redness, bruising, tenderness, or stiffness at the injection site

Injection in the past 2 weeks

Neuropathy or other medical conditions

BMI below 15 or above 35

Trial design

Design model

Parallel

Treatments tested in this trial

  • Z-track method

    Other intervention

    Z-track method, the skin will be pulled laterally by 2.5-3.5 cm before needle insertion at a 90-degree angle. After aspiration and injection, the needle will be withdrawn and the skin released immediately.

  • TPR method

    Other intervention

    TPR method, while the needle is inserted at a 90-degree angle, deep pressure will be applied to the muscle, then rapidly released to create a snapping motion that facilitates the injection. This technique relies on rapid muscle relaxation rather than needle movement by the dominant hand.

Treatment groups

76 Participants
are divided into 2 treatment groups
Group A: TPR (traction-pressure-release) techniqueExperimental treatment 1 intervention
Group B: Z-track methodExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Pain with visual analog scale

Pain intensity measured with the Visual Analog Scale (VAS), ranging from 0 (no pain) to 10 (worst possible pain). Higher scores indicate greater pain.

Time frame
Within 5 minutes after intramuscular injection

Secondary outcomes

1

Drug leakage

millimeter ruler to assess medication leakage

Time frame
Time Frame: Immediately after injection (within 1 minute)Description: Drug leakage will be observed immediately after intramuscular injection by checking the injection site for any visible medication leakage.

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.