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Transvaginal Pelvic Floor Muscle Injection Technique: A Cadaver Study
Priyanka Gupta1, Michael Ehlert, Larry T Sirls
1From the *Beaumont Health, Royal Oak, MI; †Metro Urology, Minneapolis, MN; and ‡Oakland University William Beaumont School of Medicine, Royal Oak, MI.
Female Pelvic Medicine & Reconstructive Surgery
|November 30, 2016
Summary
This study used cadavers to map pelvic floor muscle injections, finding specific locations accurately target key muscles for treating dysfunction. Results confirm effective medication delivery to pelvic floor muscles.
Area of Science:
- Anatomy
- Pelvic Floor Dysfunction
- Injection Techniques
Background:
- Pelvic floor dysfunction (PFD) affects many women and can be treated with trigger-point injections.
- No prior studies have evaluated the accuracy of pelvic floor muscle injections.
Purpose of the Study:
- To characterize the distribution of pelvic floor muscle injections using a cadaver model.
- To confirm the ability to deliver medications effectively to pelvic floor muscles.
Main Methods:
- Trigger-point injections were performed on two fresh cadaveric pelvises.
- A curved nasal cannula guide and spinal needle were used for injections at specific clock positions.
- Cadaver dissection was used to examine dye penetration and refine injection techniques.
Main Results:
- Injections at the 1-o'clock position targeted the obturator internus and externus.
- Injections at the 3-o'clock position targeted the pubococcygeus and puborectalis muscles.
- Modifications were needed to accurately target the iliococcygeus muscle, with some positions proving too deep.
Conclusions:
- This is the first study to map pelvic floor muscle injection distribution in a cadaver model.
- The study confirms that medications can be effectively delivered to target pelvic floor muscles.
