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Updated: Aug 18, 2025
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Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
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How does the type of delivery affect pelvic floor structure? MRI parameter-based anatomical study
Ayse Rabia Senkaya1, Eren Ismailoglu2, Sabahattin Anil Ari3
1Bakircay University Faculty of Medicine, Gynecology and Obstetrics Clinic, Izmir, Turkey, Turkey. dr.aysekanbak@gmail.com.
Ginekologia Polska
|December 8, 2022
Summary
Cesarean sections appear to cause less pelvic floor trauma than vaginal deliveries. This study suggests cesarean delivery may help protect the pelvic floor structure from damage.
Area of Science:
- Obstetrics and Gynecology
- Pelvic Floor Imaging
- Female Pelvic Medicine
Background:
- Pelvic floor structure can be affected by delivery type.
- Understanding these effects is crucial for managing pelvic floor disorders.
Purpose of the Study:
- To investigate the impact of delivery method and birth weight on pelvic floor anatomy.
- To analyze pelvic floor muscle defects, angles, and landmarks using MRI.
Main Methods:
- Retrospective analysis of pelvic MRI scans from 38 vaginal and 62 cesarean deliveries.
- Measurement of key pelvic floor structures and angles.
- Correlation of findings with parity, birth weight, and clinical outcomes.
Main Results:
- Vaginal delivery was associated with significantly higher uterocervical angles and levator ani muscle defects.
- Parity showed a positive correlation with levator ani defects and negative with uterocervical angle.
- Higher birth weight correlated negatively with cervix-upper vagina angle and obturator internus muscle area in vaginal deliveries.
Conclusions:
- Cesarean section appears to result in less pelvic floor trauma compared to vaginal delivery.
- Cesarean delivery may offer a protective effect on pelvic floor structures.
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