The implant was not retrieved by life spine, therefore, without further information the root cause of the reported issue could not be identified.However, it is hypothesized that the reported event may have occured due to the barbs not being appropriately seated inside the pocket of the implant and/or cam lock not being turned using the provided torque handle in the set.Additionally, one contributing factor to the failure could be that the patient had poor bone quality, which might compromise the stability of the barbs in engaging into the bone.
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