This is the second revision surgery underwent by this patient.The patient had a primary using another company's product.The patient came in for a revision (unknown reason).The surgeon performed a revision using medacta product.The patient had a standalone alif at l4-s1.Then, the patient came in complaining of pain.On 16 june 2017 the (b)(4) performed a clinical evaluation and commented as follows: in a revision alif treatment, the supplemental vertebral screws were found broken few months after implantation.The reason for the failure cannot be determined with the information at hand.The supplied images do not allow to judge if the cage has moved from the original position, but it seems still located in a clinically efficient place.We do not know if the anterior vertebral shift is subsequent to screw fracture.Batch review performed on 26 june 2017.Lot 144088: (b)(4) items manufactured and released on 14 january 2015.Expiration date: 2019-10-31.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been already sold without any similar reported event.Not explanted yet.
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