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Int Urogynecol J. 2012 Aug;23(8):1075-80. doi: 10.1007/s00192-012-1735-x. Epub 2012 Apr 28.

Variation of distances from mid-urethra to the obturator foramen: an MRI study.

Author information

1
Department of Gynecology and Obstetrics, Charles University in Prague, First Faculty of Medicine and General Teaching Hospital, Apolinarska 18, Prague 2 12000, Czech Republic. petr.hubka@centrum.cz

Abstract

INTRODUCTION AND HYPOTHESIS:

To estimate distances from the mid-urethra to the obturator foramina and to explore correlations between pelvic dimensions and body height.

METHODS:

This is a secondary analysis of a parent case-control study on the mechanisms of stress urinary incontinence. We measured pelvic dimensions on magnetic resonance images of women with (cases, n = 50) and without (controls, n = 50) stress urinary incontinence.

RESULTS:

The mean distance from mid-urethra to the obturator membrane among cases is 31.8 mm (left) and 32.1 mm (right), with a range from 25.9 to 42.0 mm. There were no significant differences in these distances when comparing left with right, or cases with controls. Weak correlation was found between the urethra-to-obturator foramina distances and heights only in the case subjects.

CONCLUSION:

There is high variability in the distance from mid-urethra to the obturator foramina. Height should not be used as a predictor of dimensions in the lesser pelvis.

PMID:
22543545
PMCID:
PMC3580942
DOI:
10.1007/s00192-012-1735-x
[Indexed for MEDLINE]
Free PMC Article

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