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.
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.
Authors: Rebecca U Margulies; Yvonne Hsu; Rohna Kearney; Tamara Stein; Wolfgang H Umek; John O L DeLancey Journal: Obstet Gynecol Date: 2006-05 Impact factor: 7.661
Authors: Markus Huebner; Katharina Rall; Sara Yvonne Brucker; Christl Reisenauer; Katja Claudia Siegmann-Luz; John O L DeLancey Journal: Int Urogynecol J Date: 2014-03 Impact factor: 2.894
Authors: Jinyong Kim; Cornelia Betschart; Rajeev Ramanah; James A Ashton-Miller; John O L DeLancey Journal: Neurourol Urodyn Date: 2014-08-22 Impact factor: 2.696
Authors: Daniel M Morgan; Kindra Larson; Christina Lewicky-Gaupp; Dee E Fenner; John O L DeLancey Journal: Int J Gynaecol Obstet Date: 2011-06-12 Impact factor: 3.561
Authors: Cornelia Betschart; Jinyong Kim; Janis M Miller; James A Ashton-Miller; John O L DeLancey Journal: Int Urogynecol J Date: 2014-05-15 Impact factor: 2.894