(b)(4).Product was not returned to the manufacturer for evaluation.Therefore, we are unable to determine the definitive cause of the r eported event.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.
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Pre-op diagnosis: lumbar canal stenosis (lcs), procedure: oblique lumbar interbody fusion (olif), levels: l3-5 it was reported that, intra-op, the surgeon used a sleeve remover for removing a sleeve after placing the cage.The surgeon turned round and round a handle and it came off from the cage so the inserter was detached.It was found that the cage was deviated to opposite side by x-ray.No image was used while the surgeon was using the sleeve remover.There was delay in the overall procedure time by more than 60 minutes.At the beginning of the surgery, the surgeon performed from left side but the cage deviated in opposite side so he had to approach from right side to replace the cage with 2mm bigger one.The surgeon was watching intra-operative imaging when he was operating at l3/l4 but when he was operating at l4/l5, he did not pay much attention to the imaging.When the surgeon confirmed the imaging after using a remover, the cage was half protruded from vertebral body.The cage was removed from right side and reinserted.After that, the surgeon carefully used the remover but the cage was pushed in so he adjusted the location of the cage with a slap hammer.Patient complications were reported unknown.
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