Much has been written on the technic of intramuscular injection, but little work has been done in man, on its local dispersion. It was felt that such a study might offer some explanation for local reactions. It was also hoped that it might establish some rational foundation for the dispersion of intramuscular injections.
The technic of injection used for this study is that outlined in detail by Stokes.1 This consists essentially of securing complete relaxation in the patient by having him lie on his abdomen on a narrow table with arms hanging over the sides of the table and "toed in" to relax the gluteus maximus muscle. The buttock is divided into four equal quadrants, and the injection is given near the angle of the upper outer quadrant. The left hand is used to pull down on the skin and superficial fascia before the needle is inserted. This acts
SHAFFER LW. THE FATE OF INTRAGLUTEAL INJECTIONS. Arch Derm Syphilol. 1929;19(3):347–364. doi:10.1001/archderm.1929.02380210002001
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