Sacral malformations: use of imaging to optimise sacral nerve stimulation

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Povo, A (Author) Other; Arantes, M (Author) FMUP; Matzel, KE (Author) Other; Barbosa, J (Author) FMUP; tavares, ma (Author) FMUP

Journal

Title: International Journal of Colorectal Disease

Vol. 31

Pages: 351-357

ISSN: 0179-1958

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00G-W9N

DOI: 10.1007/s00384-015-2417-1

Abstract (EN): The success of sacral nerve stimulation, a common treatment for pelvic floor disorders, depends on correct placement of the electrodes through the sacral foramina. When the bony anatomy and topography of the sacrum and sacral spinal nerves are intact, this is easily achieved; where sacral anomalies exist, it can be challenging. A better understanding of common sacral malformations can improve the success of sacral nerve stimulation (SNS) electrode placement. We reviewed 998 consecutive MRI scans performed to investigate low back pain in patients who had undergone CT and/or X-ray. Congenital sacral malformations were found in 24.1 %, the most common being sacral meningeal cysts (16 %) and spina bifida occulta (9.9 %). Others were lumbosacral transitional vertebrae (2.5 %), anterior occult meningocele (0.5 %), partial sacral agenesis (0.2 %) and vertebral dysplasia of S1 (0.2 %). This radiologic review uncovered a high incidence of sacral malformations, and most were asymptomatic. All surgeons who perform SNS should have a basic understanding of sacral malformations, their incidence and effect on foraminal anatomy. Imaging will aid procedural planning.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7