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Anatomical structures at risk using different approaches for sacrospinous ligament fixation
Authors:Albert De Decker  Rosalie Fergusson  Benjamin Ondruschka  Niels Hammer  Johann Zwirner
Affiliation:1. Middlemore Hospital, Auckland, New Zealand;2. Institute of Legal Medicine, University of Leipzig, Leipzig, Germany;3. Department of Anatomy, University of Otago, Dunedin, New Zealand

Department of Orthopedic and Trauma Surgery, University of Leipzig, Leipzig, Germany

Fraunhofer IWU, Dresden, Germany;4. Department of Anatomy, University of Otago, Dunedin, New Zealand

Abstract:For 50 years now, sacrospinous ligament fixation (SSLF) has been used to treat pelvic organ prolapse consequent on altered integrity of the pelvic myofascial structures. It is usually performed vaginally, but it has recently been performed laparoscopically through either an anterior or a posterior approach, with the broad ligament as a landmark to differentiate the two. In the present study, these two laparoscopic approaches were assessed using Thiel-embalmed cadavers. The anterior and posterior approaches were compared in terms of the closest distance to anatomical structures at risk, including pelvic viscera, the obturator nerve, and vascular structures. The posterior approach was more often closer to the investigated vessels and the rectum. The obturator nerve and the ureter were close to both the anterior and posterior approaches. The urinary bladder was closer using the anterior approach. From an anatomical standpoint, therefore, the anterior laparoscopic approach for SSLF is more likely to cause injury to the urinary bladder, whereas the posterior approach is more prone to causing rectal and vessel injuries. This study illustrates, from a basic science perspective, the importance of combining fascia research, novel endoscopic or minimally invasive surgical exposures informed by anatomy, and contemporary trends in gynecology in order to improve patient outcomes. Clin. Anat. 33:522–529, 2020. © 2019 Wiley Periodicals, Inc.
Keywords:sacrospinous ligament fixation  laparoscopy  Thiel embalming  pelvic organ prolapse  pelvic fascia
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