Coluna/Columna ()

TOMOGRAPHIC STUDY OF THE S2-ALAR-ILIAC SCREW TECHNIQUE IN BRAZILIAN WOMEN

  • Thiego Pedro Freitas Araújo,
  • João Paz Vaz de Souza,
  • Diego Ubrig Munhoz,
  • Mauro Costa Morais Tavares,
  • Raphael Martus Marcon,
  • Alexandre Fogaça Cristante,
  • Tarcísio Eloy Pessoa de Barros Filho,
  • Olavo Letaif Biraghi

DOI
https://doi.org/10.1590/s1808-185120181704179196
Journal volume & issue
Vol. 17, no. 4
pp. 313 – 316

Abstract

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ABSTRACT Objective: Lumbosacral fixation presents problems in its arthrodesis, mainly due to pseudoarthrosis. Iliac screws minimize this problem, however, they show problems in the operative wound. The S2-Alar-iliac (S2AI) screw presents a lower rate of these complications. The anatomical differences between the populations and the sexes analyzed in the literature justify the study of the S2AI screw technique in Brazilian women. Methods: A total of 14 adult female CT scans were analyzed by 4 evaluators. Results: The mean bone length was 131.8 mm, the largest bone diameter was 22.6 mm, and the smallest bone diameter was 22.6 mm. Conclusions: The data presented are compatible with the literature and may assist spine surgeons in choosing the best implant and surgical technique. Level of Evidence I; Diagnostic Studies — Investigating a Diagnostic Test (anatomical investigation).

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