This product is not approved for sale in us but a similar device with catalog # 2991026, 510k #k073291 and (b)(4) was cleared in the united states.Product was not returned to the manufacturer for evaluation.Therefore, we are unable to determine the definitive cause of the reported event.However x-rays were reviewed and their results are as follows: x-ray review: "post-op ct/x-ray for l4-5 tlif (transforaminal lumbar interbody fusion) show posterior displacement of cage.Reported to have occurred after 9 years from surgery, no other films provided that show initial placement is ok.There is no bone growth in the interbody space and it looks like there is a bone remodeling in the anterior interbody space suggesting the device was not properly inserted in the original surgery.".
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It was reported that the patient underwent mis-tlif (minimally invasive surgery- transforaminal lumbar interbody) at l4/5 about 9 years ago in which the cage was implanted at l4/5 right, multi-axial screws were placed at both sides of l4 and l5 and rods were placed on both sides of l4/5.Post-op, the cage was found to back out.Neurological symptom was developed due to cage back out.No loosening of plugs or screws was reported.All implants were removed completely in a revision surgery and were replaced with competitor¿s implants.The patient issue has been resolved.
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