Patient's ct imaging depicts a fracture in the sub laminar cerclage device below the locking buckle.The devices were not returned to spinal elements as it remain in-situ and therefore could not be evaluated.There is no plan for revision.Unknown factors include: patient activity at the time or prior to the event, the degree of spinal instability, stress and forces effecting the device or patient compliance with post-operative care instructions or if the patient sustained a fall/impact of any sort (no trauma was reported.) root cause or specific failure mode cannot be determined.
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