(b)(6).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) 2009, the patient presented with following pre-op diagnosis: lumbar spinal stenosis (724.02).Lumbosacral disk degeneration (722.52).Lumbar spondylosis (721.3).Post laminectomy syndrome, lumbar (722.83).The patient underwent following procedures: l5-s1 laminectomy with bilateral partial facetectomies and foraminotomies with decompression of the neural elements.Revision, right l4-5 hemilaminectomy with partial facetectomy and foraminotomy with decompression of the neural elements.Revision, left l4-5 hemilaminectomy, partial facetectomy, and foraminotomy with decompression of the neural elements.Revision, right l3-4 hemilaminectomy with partial facetectomy and foraminotomy with decompression of the neural elements.Removal of l3-l5 posterior segmental spinal instrumentation.Exploration of l3-4 and l4-5 posterior spinal fusion.Posterolateral spinal fusion, l3-4.Posterolateral spinal fusion, l4-5.Posterolateral spinal fusion, l5-s1.L3-s1 segmental spinal instrumentation (titanium instrumentation from nuvasive).Local autograft bone graft harvest in preparation for spinal fusion.Morselized allograft bone graft for spinal fusion.Use of rhbmp-2.Spinal monitoring.As per operative notes,¿ the patient's remaining transverse processes at l3, l4, and l5 were decorticated with the bur bilaterally and the lateral fusion mass was also decorticated with the bur at l3-4, l4-5; and the sacral ala were decorticated bilaterally; and the l5-s1 facets were decorticated and destroyed.Rhbmp-2 and morselized allograft bone graft were then applied in bilateral posterolateral gutters across and between the transverse processes of l3, l4, l5, and the sacral ala - first on the left and then on the right.¿ no intra-operative complications were reported.
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