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No product has been returned, as hospital policy is to dispose of the explant.Product information was acquired through case sheet information.Cts, radiographs or x-rays were not available.It is unknown what caused the cervical plating system to disassociate from the vertebral bodies.Index surgery was due to unknown trauma, as patient was admitted through er.Patient condition prior to index surgery is unknown and bone quality is unknown.Surgeon suggests system failure was not a result of system manufacturing or design, but due to patient condition.No conclusion can be drawn.Labeling review: intra-operative warnings: if the system/construct contains screws, prior to soft tissue closure, recheck all screws to ensure they are tightened.Failure to do so may cause loosening of other components.Possible adverse events loosening of spinal fixation implants may occur due to inadequate initial fixation, latent infection, and/or premature loading, possibly resulting in bone erosion, migration or pain.Labeling warnings and precautions: based on the fatigue testing results, the surgeon should consider the levels of implantation, patient weight, patient activity level, other patient conditions.
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Patient was admitted through er after unknown traumatic event on (b)(6) 2018.Three days following ((b)(6) 2018) index surgery was completed consisting of an acdf at c5-c6, c6-c7 two-level implants, with a partial corpectomy at c4-c5.An anterior plate was placed across the 3-level surgical site.Revision surgery (completed by dr.(b)(6)) was performed on (b)(6) 2018.Four screws at levels c5, c6 & c7 pulled out of the vertebral body.The revision procedure replaced the affected screws with rescue screws, while keeping the same plate in place.The c4 screws maintained healthy purchase.The removed screws were discarded according to hospital policy.Patient has since returned home.Surgeon has expressed no concern about our device in relation to this event.
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