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Lumbar Spinal Stenosis: Pathophysiology, Biomechanics, and Innovations in Diagnosis and Management

Author(s): Alexander Abdou, Samuel Kades, Tariq Masri-zada, Syed Asim, Mo’men Bany-Mohammed, Devendra K. Agrawal

Lumbar spinal stenosis (LSS) is a common condition caused by the narrowing of the spinal canal, resulting in compression of neural and vascular structures. This compression leads to symptoms such as claudication, paresthesia, and lower extremity weakness. LSS is the leading cause of low back pain and functional limitations, affecting over 103 million people worldwide. Degenerative changes, including ligamentum flavum hypertrophy, facet joint osteoarthritis, and intervertebral disc degeneration, are the primary contributors to LSS. Additional factors, such as genetic predisposition, congenital abnormalities, and autoimmune conditions, are also emerging as contributors. A major challenge in managing LSS lies in differentiating it from other causes of neurogenic symptoms and low back pain while devising an appropriate treatment plan from the wide array of conservative and surgical options available. Minimally invasive surgical techniques, such as lumbar spinous processsplitting laminoplasty and partial facetectomy, are often compared to the gold standard laminectomy with or without fusion. Surgical interventions offer significant improvements in pain relief, disability, and quality of life within 3–6 months; however, these benefits often diminish after 2–4 years. Contrasting evidence demonstrates that long-term outcomes of non-surgical treatments, such as physical therapy, pharmacological management, and lifestyle modifications, are often comparable to surgical modalities. Emerging therapies, including interspinous devices and stem cell therapy, show promise but require further research. Managing LSS requires a multidisciplinary approach tailored to patient-specific factors, including age, comorbidities, and functional goals. Future research should aim to improve diagnostic accuracy, refine surgical techniques, and explore innovative therapies to enhance outcomes for patients with LSS.

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Impact Factor: * 3.123

Acceptance Rate: 75.30%

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