Injury‐Associated Levator Ani Muscle and Anal Sphincter Edema Following Vaginal Birth: a Secondary Analysis of the EMRLD Study

Author(s):  
Fernanda Pipitone ◽  
Janis M. Miller ◽  
John O.L. DeLancey
2019 ◽  
Vol 95 (3) ◽  
pp. 305-312 ◽  
Author(s):  
Janyaruk Suriyut ◽  
Satoru Muro ◽  
Phichaya Baramee ◽  
Masayo Harada ◽  
Keiichi Akita

AbstractThe male pelvic floor is a complex structure formed by several muscles. The levator ani muscle and the perineal muscles are important components of the pelvic floor. The perineal muscles comprise the external anal sphincter, bulbospongiosus, superficial transverse perineal muscles, and ischiocavernosus. Although the connections of the muscles of the pelvic floor have been reported recently, the anatomical details of each muscle remain unclear. In this study, we examined the male pelvic floor to clarify the connection between the muscles related to function. Fifteen male pelvises were used for microscopic dissection, and three male pelvises were used for histological examination. On the lateral aspect, the perineal muscles were connected to each other. Bundles of the levator ani muscle extended to connect to the perineal muscles. In addition, the extended muscle bundle from the levator ani muscle and the perineal muscles surround the external urethral sphincter. On the medial aspect, the levator ani muscle and the external anal sphincter form the anterior and posterior muscular slings of the anal canal. The connection between the perineal muscles and levator ani muscle indicates a possible close relationship between the functions of the urethra and anus.


2019 ◽  
Vol 299 (4) ◽  
pp. 1001-1006 ◽  
Author(s):  
Eva Martínez Franco ◽  
José Luís López Negre ◽  
David Parés ◽  
Cristina Ros Cerro ◽  
Lluís Amat Tardiu ◽  
...  

2017 ◽  
Vol 49 (2) ◽  
pp. 257-262 ◽  
Author(s):  
M. Simó González ◽  
J. Cassadó Garriga ◽  
C. Dosouto Capel ◽  
O. Porta Roda ◽  
J. Perelló Capó ◽  
...  

2004 ◽  
Vol 103 (1) ◽  
pp. 31-40 ◽  
Author(s):  
Kuo-Cheng Lien ◽  
Brian Mooney ◽  
John O. L. DeLancey ◽  
James A. Ashton-Miller

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