Disc shaver broke at distal end when being rotated between disc space and removing material from end plates.Part not returned.No surgical technique provided.No patient anatomy provided.No pre or post-op x-rays provided.No harm or injury to the patient was reported.Case was completed.Cause indeterminate.Failure mode could not be replicated during testing.Unknown loading and/or usage condition exceeded material strength.Therefore the exact cause is indeterminate.Also, the lot no # is not provided, and the part is not returned.So engineering conclusion is indeterminate.
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