Origin and insertion points involved in levator ani muscle defects - 22/08/11
Résumé |
Objective |
This project sought to identify and to describe the anatomical connections affected by levator ani defects involving the pubovisceral portion of the muscle.
Study Design |
Fourteen magnetic resonance scans of women with unilateral levator defects were selected. The missing muscle mapping technique was used to characterize the absent muscle. Normal muscle was visualized and compared with the contralateral side. Using a three-dimensional slicer, the outline of the intact muscle was traced; models of this muscle and surrounding structures were generated.
Results |
The missing muscle originates from the posterior pubic bone and extends laterally over the obturator internus muscle; it inserts into the vaginal wall, perineal body, and the intersphincteric space. Architectural distortion, with an asymmetric lateral spilling of the vagina was present in 50% of women. The defect was right sided in 71% of patients.
Conclusion |
The origin and insertion points of the damaged portion of the levator ani muscle were identified.
Le texte complet de cet article est disponible en PDF.Key words : levator ani defects, magnetic resonance, missing muscle mapping, pubovisceral
Plan
| Reprints not available from the authors. |
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| This study was supported by the National Institutes of Health through the Office for Research on Women’s Health, Specialized Centers of Research, Program on Sex and Gender Factors Affecting Women’s Health; National Institute of Child Health and Human Development Grants P50 HD 44406 and R01 HD 38665; National Institute of Diabetes and Digestive and Kidney Diseases R01 DK 051405; and the German Research Foundation, Grant HU1502/1-1. |
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| Cite this article as: Margulies RU, Huebner M, DeLancey JOL. Origin and insertion points involved in levator ani muscle defects. Am J Obstet Gynecol 2007;196;251.e1-251.e5. |
Vol 196 - N° 3
P. 251.e1-251.e5 - mars 2007 Retour au numéro
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