This study evaluated the ventrogluteal site for intramuscular injection in adults with a body mass index of 25 kg/m² or higher. Ultrasound was used to measure subcutaneous tissue, muscle, and total tissue thickness at the injection site and the distances from the injection point to anatomical landmarks and the sciatic nerve. During intramuscular injection with a 40 mm needle, real-time ultrasound was used to visualize the needle tip and assess its position within the muscle. The study also evaluated successful intramuscular placement, subcutaneous medication leakage, and injection-related complications. The findings were assessed across three body mass index groups.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
89
Participants received a ventrogluteal intramuscular injection of 1 mL cyanocobalamin (1000 mcg/mL) using a 40 mm, 21-gauge needle. The injection site was identified using the G method. During the injection, the needle tip was visualized in real time using ultrasonography to evaluate its intramuscular position, including its distance from the superficial muscle fascia and the ilium. The position of the needle tip relative to the sciatic nerve was also assessed.
Bagcilar Training and Research Hospital
Istanbul, Eyalet/Yerleşke, Turkey (Türkiye)
Percentage of Participants With Successful Intramuscular Placement of the 40 mm Needle
The percentage of participants in whom the 40 mm needle met the predefined intramuscular placement criteria was assessed using real-time ultrasonography. Successful intramuscular placement was defined as the needle tip being at least 10 mm beneath the superficial muscle fascia and at least 10 mm away from the iliac cortex.
Time frame: During the injection procedure, immediately after full insertion of the needle and before medication administration
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.