Joo Gaeul, Sohng Kyeong-Yae
College of Nursing, The Catholic University of Korea, Seoul, Korea.
J Korean Acad Nurs. 2010 Apr;40(2):247-54. doi: 10.4040/jkan.2010.40.2.247.
To study the thickness of gluteal subcutaneous fat (SCF) and propose an adequate length for needle for gluteal intramuscular injections based on computed tomography (CT) measurements.
The thickness of gluteal SCF were measured and studied for 568 patients who visited a tertiary hospital in Seoul, Korea between January 2007 and February 2009 for routine health screening and who had abdominopelvic CT.
The average thickness of gluteal SCF was 15.92+/-4.08 mm in males and 24.90+/-5.47 mm in females. The thickness of gluteal SCF differed significantly according to gender. The gluteal SCF thickness was greater than 20.4 mm for 54 (12.3%) of the 440 male patients and 99 (77.3%) of the 128 female patients.
The most common syringe needle used for gluteal intramuscular injections in Korea is a 23 G, 25.4 mm-needle. The SCF thickness must be less than 20.4 mm in order to reach the dorsogluteal muscles to a depth of at least 5 mm if this 25.4 mm needle is used. In many patients, especially in female patients, the 25.4 mm needles will result in improper intramuscular injections with the injection being into the SCF. Therefore an appropriate needle should be selected by considering the gender and SCF thickness of patients receiving gluteal intramuscular injections.
基于计算机断层扫描（CT）测量，研究臀皮下脂肪（SCF）厚度，并提出用于臀肌内注射的合适针长。
对2007年1月至2009年2月期间在韩国首尔一家三级医院进行常规健康筛查且接受过腹部盆腔CT检查的568例患者的臀SCF厚度进行测量和研究。
男性臀SCF平均厚度为15.92±4.08毫米，女性为24.90±5.47毫米。臀SCF厚度因性别而异。440例男性患者中有54例（12.3%）、128例女性患者中有99例（77.3%）的臀SCF厚度大于20.4毫米。
韩国用于臀肌内注射最常用的注射器针头是23G、25.4毫米的针头。如果使用这种25.4毫米的针头，为了至少5毫米的深度刺入臀大肌，SCF厚度必须小于20.4毫米。在许多患者中，尤其是女性患者，25.4毫米的针头会导致肌内注射不当，注射进入SCF。因此，应根据接受臀肌内注射患者的性别和SCF厚度选择合适的针头。
