The original surgery was 7 years ago.Allegedly there is pseudarthrosis, but no further surgical information was given.Dhr review cannot be completed as no device information has been received.No evaluation of the device can be performed, as the device was not returned.Unknown factors include: exact implant duration, patient activity at the time or prior to the event, patient bone quality, the degree of spinal instability, or patient compliance with post-operative care instructions or if the patient sustained a fall/impact of any sort.Root cause or specific failure mode cannot be determined.Labeling review notes: "warnings: devices are not intended to be the sole means of spinal support.Use of these products without a bone graft or in cases that develop into a non-union will not be successful.No spinal implant can withstand body loads without the support of bone.In this event, bending, loosening, disassembly and/or breakage of the device(s) will occur.
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