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Batch review performed on 06 febr 2026.Lot 2121367: (b)(4) items manufactured and released on 01-jul-2021.Expiration date: 2026-jun-10.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.Clinical evaluation performed by clinical affairs dept.A revision surgery was performed a few days after l4-l5 fusion due to ventral migration of the interbody cage.The available x-ray image clearly confirms the occurrence of cage migration.This event is most likely related to insufficient primary stability, considering the very early occurrence.This could be associated with several factors, such as suboptimal positioning or sizing of the cage, endplate preparation, or inadequate posterior compression.Patient-specific factors may have also played a role.Based on the available information, it is not possible to draw definitive conclusions regarding the exact cause of the migration.Root cause: based on the information available, no definitive root cause can be established, while the device history record review does not indicate any potential manufacturing-related issue.Although it cannot be confirmed, the event is most likely related to insufficient primary stability, considering the very early occurrence.This could be associated with several factors, such as suboptimal cage positioning or sizing choise, combined with potential intraoperative variables, including endplate preparation or posterior compression.
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