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Optimized posterior starting point of sacral-alar-iliac screw/reverse sacral-alar-iliac screw for sacroiliac joint fixation: experimental study and preliminary application

Abstract Background A classic posterior starting point of sacral-alar-iliac screw (SAIS) for spinopelvic fixation may not be optimal for sacroiliac joint fixation. We aimed to compare the safety and biomechanical performance of SAIS/reverse SAIS (RSAIS) implanted via the classic (lateral S1–S2 dorsa...

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Main Authors: Shihao Du, Zeqing Li, Dong Li, Yongwei Wu, Yunhong Ma
Format: Artigo
Language:Inglês
Published: BMC 2026-01-01
Series:BMC Musculoskeletal Disorders
Subjects:
Sacroiliac joint
Sacroiliac screw
Sacral alar-iliac screw
Biomechanics
Starting point
Online Access:https://doi.org/10.1186/s12891-026-09539-w
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