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Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
Published on: September 20, 2018
The Association Between Levator Ani Integrity and Postpartum Ano-Rectal Dysfunction: A Systematic Review.
Adéla Samešová1,2,3, Rafaël Kiebooms1, Laura Cattani1,4
1Department Development and Regeneration, Cluster Urogenital, Abdominal and Plastic Surgery, KU Leuven, Leuven, Belgium.
International Urogynecology Journal
|January 17, 2025
Summary
This study found no link between levator ani muscle (LAM) avulsion and postpartum ano-rectal dysfunction. Childbirth does not appear to cause incontinence symptoms due to LAM avulsion.
Area of Science:
- Obstetrics and Gynecology
- Pelvic Floor Disorders
- Female Pelvic Medicine
Background:
- Pregnancy and childbirth can lead to ano-rectal dysfunction.
- Vaginal delivery may affect pelvic floor structure and function.
- Levator ani muscle (LAM) avulsion is a potential consequence of childbirth.
Purpose of the Study:
- To systematically review the literature on the association between levator ani muscle (LAM) avulsion and ano-rectal function after childbirth.
- To investigate the impact of LAM avulsion on pelvic floor functionality post-delivery.
Main Methods:
- Systematic literature search across multiple databases (PubMed, EMBASE, etc.).
- Inclusion of studies assessing LAM anatomy (imaging) and ano-rectal function (questionnaires, manometry) within 24 months postpartum.
- Meta-analysis and subgroup analysis (with/without anal sphincter trauma) to pool data on LAM avulsion and ano-rectal function.
Main Results:
- 11 studies involving 2,146 women were included.
- Levator ani muscle (LAM) avulsion showed no statistically significant association with incontinence symptoms (OR 1.75 [0.74, 4.12]).
- This lack of association persisted in the subgroup with concomitant anal sphincter injury (OR 1.83 [0.71, 4.71]).
Conclusions:
- No evidence of an association between levator ani muscle (LAM) avulsion and ano-rectal dysfunction was identified following vaginal childbirth.
- Postpartum ano-rectal dysfunction is not directly linked to LAM avulsion based on current literature.
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