European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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Multicenter Study
Surgical treatment of sacral chordoma: prognostic variables for local recurrence and overall survival.
Sacral chordomas (SC) are rare, locally invasive, malignant neoplasms. Despite surgical resection and adjuvant therapies, local recurrence (LR) is common and overall survival (OS) is poor. The objective of this study was to identify prognostic factors that have an impact on the local recurrence-free survival (LRFS) and OS of patients with SC. ⋯ This study identified two predictive variables for LRFS (previous tumor surgery and type of surgical resection) and two for OS (age and impaired motor function) in surgically treated SC patients. Our results indicate that en bloc resection reduces LR but does not influence OS. However, this was likely due to short follow-up (3.2 years).
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Multicenter Study
Sacropelvic fixation in adult spinal deformity (ASD); a very high rate of mechanical failure.
Sacropelvic fixation (SPF) is an integral part of ASD surgery. Literature suggests that combination of S1 and iliac screws may be associated with lowest rate of complications. ⋯ Pelvic fixation is still associated with a very high rate of mechanical failure. Major risk factors appear to be age and type of fixation. Although could not be shown to be statistically significant, failure to restore the optimal sagittal balance may be a contributing factor as well. So in conclusion, in cases with suboptimal sagittal plane correction, S2AI with polyaxial screws seem to have higher risk of short-term acute failure compared to IwL.