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Updated: Aug 13, 2025

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
The association between levator plate integrity and pelvic floor defaecatory dysfunction.
Alison Hainsworth1, Deepa Solanki1, Linda Ferrari1
1The Pelvic Floor Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Levator ani deficiency is linked to anatomical pelvic floor abnormalities like rectocele and intussusception. While bowel symptoms showed no link, vaginal symptoms were associated with levator ani deficiency.
Area of Science:
- Pelvic floor disorders
- Colorectal surgery
- Urogynecology
Background:
- Levator ani deficiency is implicated in anterior pelvic floor pathology.
- Its association with pelvic floor defaecatory dysfunction is less clear.
Purpose of the Study:
- To examine the relationship between levator ani deficiency and anatomical abnormalities (rectocele, intussusception, enterocele, perineal descent).
- To investigate the association between levator ani deficiency and patient symptoms (bowel, vagina) in those with pelvic floor defaecatory dysfunction.
Main Methods:
- Prospective observational case series of 223 women with defaecatory dysfunction.
- Assessment included symptom severity and quality of life (QoL) scores, integrated total pelvic floor ultrasound (PFUS), and defaecation proctography (DP).
- Levator ani deficiency was scored using endovaginal ultrasound (mild, moderate, severe).
Main Results:
- The proportion of patients with rectocele, enterocele, and intussusception increased with worsening levator ani deficiency.
- Weakly positive correlations were found between rectocele size, intussusception, enterocele, perineal descent, and levator ani deficiency.
- No association was found between bowel symptoms or QoL scores and levator ani deficiency; however, vaginal symptoms were associated.
Conclusions:
- Anatomical abnormalities associated with pelvic floor defaecatory dysfunction correlate with increased levator ani deficiency.
- While bowel symptoms are not linked, vaginal symptoms are associated with levator ani deficiency.
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