Neither the device nor films of applicable imaging studies were returned to the manufacturer for evaluation.Therefore, we are unable to determine the definitive cause of the reported event.If information is provided in the future, a supplemental report will be issued.
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It was reported that on (b)(6) 2003: the patient presented with following pre-op diagnosis: pseudarthrosis lumbar spine, l4-l5, l5-s1.Lumbar degenerative instability, l3-l4.Failed posterior spinal instrumentation, pedicle screws in l4 and s1.Status posts multiple low back operations, including laminectomy and instrumented spinal fusion l4 to the sacrum, with non-segmental instrumentation (steffee plate and screws in l4 and 51).The patient underwent the following procedures: arthrodesis lumbar spine via retroperitoneal exposure, anterior body fusion l5-s1.Additional revel, arthrodesis lumbar spine, anterior lumbar interbody fusion l4-l5.Additional level, arthrodesis lumbar spine, anterior lumbar interbody fusion l3-l4.Insertion of a prosthetic device in the interbody space, peek cage l5-s1.Additional level, insertion of a prosthetic device in the interbody space, peek interbody cage at l4-l5.Additional level, insertion of a prosthetic device in the interbody space, peek cage in the interbody space at l3-l4.Insertion of bone morphogenic protein(bmp) in the interbody cages at l3-l4, l4- l5, and l5-s1.As per operative notes,¿ a 16-mm anterior height cage with an 8- degree lordotic angle was packed with bone morphogenic protein(bmp) on the collagen sponge.The cage was then inserted into the disc space at l3-4.Again the cages were placed under c-arm guidance, with good bony contact.The cages were tight in their disc spaces.Gelfoam was placed over the annulotomy sites.¿ no intra-operative complications were reported.
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