Technical note evaluates surgical outcomes of posterior SIJ fusion using cylindrical cages in severe cases, indicating lower invasiveness.
Introduction: Anterior sacroiliac joint (SIJ) fusion has been performed for severe SIJ disorders and has demonstrated stable long-term outcomes; however, its relatively high invasiveness remains a significant concern. To overcome this limitation, we developed a posterior fusion using transarticular cylindrical cages combined with posterior instrumentation. This study describes the posterior SIJ fusion technique and evaluates the surgical outcomes.
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Kurosawa et al. (2026) studied this question.
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