{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T05:54:47Z","timestamp":1763445287951},"reference-count":23,"publisher":"Asian Spine Journal (ASJ)","issue":"2","license":[{"start":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T00:00:00Z","timestamp":1523836800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["asianspinejournal.org"],"crossmark-restriction":true},"short-container-title":["Asian Spine J"],"published-print":{"date-parts":[[2018,4,30]]},"abstract":"<sec><title>Study Design<\/title><p>Retrospective study with long-term follow-up.<\/p><\/sec><sec><title>Purpose<\/title><p>To evaluate the long-term incidence of adjacent segment degeneration (ASD) and clinical outcomes in a consecutive series of patients who underwent spinal decompression associated with dynamic or hybrid stabilization with a Flex+TM stabilization system (SpineVision, Antony, France) for lumbar spinal stenosis.<\/p><\/sec><sec><title>Overview of Literature<\/title><p>The incidence of ASD and clinical outcomes following dynamic or hybrid stabilization with the Flex+TM system used for lumbar spinal stenosis have not been well investigated.<\/p><\/sec><sec><title>Methods<\/title><p>Twenty-one patients with lumbar stenosis and probable post-decompressive spinal instability underwent decompressive laminectomy followed by spinal stabilization using the Flex+TM stabilization system. The indication for a mono-level dynamic stabilization was a preoperative magnetic resonance imaging (MRI) demonstrating evidence of severe disc disease associated with severe spinal stenosis. The hybrid stabilization (rigid-dynamic) system was used for multilevel laminectomies with associated initial degenerative scoliosis, first-grade spondylolisthesis, or rostral pathology.<\/p><\/sec><sec><title>Results<\/title><p>The improvement in Visual Analog Scale and Oswestry Disability Index scores at follow-up were statistically significant (<italic>p<\/italic>&lt;0.0001 and <italic>p<\/italic>&lt;0.0001, respectively). At the 5\u20138-year follow-up, clinical examination, MRI, and X-ray findings showed an ASD complication with pain and disability in one of 21 patients. The clinical outcomes were similar in patients treated with dynamic or hybrid fixation.<\/p><\/sec><sec><title>Conclusions<\/title><p>Patients treated with laminectomy and Flex+TM stabilization presented a satisfactory clinical outcome after 5\u20138 years of follow-up, and ASD incidence in our series was 4.76% (one patient out of 21). We are aware that this is a small series, but our long-term follow-up may be sufficient to contribute to the expanding body of literature on the development of symptomatic ASD associated with dynamic or hybrid fixation.<\/p><\/sec><\/jats:p>","DOI":"10.4184\/asj.2018.12.2.263","type":"journal-article","created":{"date-parts":[[2018,4,19]],"date-time":"2018-04-19T05:52:23Z","timestamp":1524117143000},"page":"263-271","update-policy":"http:\/\/dx.doi.org\/10.31616\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The Incidence of Adjacent Segment Degeneration after the Use of a Versatile Dynamic Hybrid Stabilization Device in Lumbar Stenosis: Results of a 5\u20138-Year 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