Abstract
Introduction
Since 1836 and the first description of the recto-genital fascia by Charles Denonvilliers, many anatomists have shown interest in this subject. Recently, pelvic surgeons have in turn shown similar interest, for they consider that perfect knowledge of this anatomical domain is crucial for optimal nerve conservation during surgery. Thanks to new anatomical description techniques, fascia location and relationships with pelvic nerves now appear clearer.
Objectives
To describe and represent Denonvilliers’ fascia and its relationships in the female foetus at different stages of gestation and in three-dimensional space (3D).
Materiel/patients and methods
Computer-assisted anatomical dissection technique was used. Serial histological sections were made from four human female foetuses. Sections were treated with conventional staining, as well as with nerve and smooth muscle immunostaining. Finally, the sections were digitalized and reconstructed in 3D.
Results
Denonvilliers’ fascia was clearly located and visualized in three dimensions. It was present in the female foetus, being distinct from the fascia propria of the rectum. It appeared to be composed of multiple parallel layers situated between the vagina and the rectum. From a lateral view, it had an asymmetrical “Y-shaped” aspect that seemed to play the role of a protective sheet for the neurovascular bundles.
Conclusion
This study betters our comprehension of the Denonvilliers’ fascia in the female foetus and of its connections with pelvic nerves. It also provides a better understanding of safe planes during pelvic dissection. These findings also suggest a biomechanical theory for embryological origin of the Denonvilliers’ fascia.
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Bertrand, M.M., Alsaid, B., Droupy, S. et al. Biomechanical origin of the Denonvilliers’ fascia. Surg Radiol Anat 36, 71–78 (2014). https://doi.org/10.1007/s00276-013-1142-0
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DOI: https://doi.org/10.1007/s00276-013-1142-0