Visual inspection, material analysis, device history review, complaint history review, risk assessment.The customer reported event was confirmed via visual inspection of the returned device.Material analysis was performed on the cage and concluded that the cage fractured while threaded to an inserter due to an applied cantilever force onto the inserter.No material or manufacturing defects were found.Manufacturing records were reviewed for the corresponding lot and no relevant issues were identified.The probable root cause for the cage fracture is user error, specifically excessive impaction force applied to the cage during insertion.
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