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

• Main Authors: 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
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Coluna (SBC)
• Series: Coluna/Columna
• Subjects: Doenças da coluna vertebral; Cirurgia; Fixação interna de fraturas
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512018000400313&lng=en&tlng=en
• ISSN: 2177-014X

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).