Cervical spondylotic myelopathy

Cervical spondylotic myelopathy
Name	Cervical spondylotic myelopathy
Specialty	Neurology, Orthopedics, Neurosurgery

Contents

Cervical spondylotic myelopathy is a degenerative condition of the cervical spinal cord that causes progressive neurological deficits and disability, often managed by specialists in Neurology, Neurosurgery, Orthopedics, Rehabilitation medicine, and allied fields. Its clinical recognition has influenced guidelines from organizations such as the World Health Organization and professional societies like the American Academy of Neurology and North American Spine Society, and is a common subject in textbooks used at institutions including Johns Hopkins Hospital, Mayo Clinic, and Massachusetts General Hospital.

Presentation

Patients typically present with a combination of neck pain, gait disturbance, hand numbness, and fine motor impairment, a constellation referenced in classic clinical descriptions by clinicians at Mayo Clinic, Cleveland Clinic, Stanford University Medical Center, UCSF Medical Center, and during lectures at Harvard Medical School. Symptoms often evolve insidiously over months to years, paralleling cases discussed at conferences hosted by American Academy of Orthopaedic Surgeons, Congress of Neurological Surgeons, European Spine Society, World Federation of Neurosurgical Societies, and reported in case series from centers like Charité – Universitätsmedizin Berlin and Karolinska Institutet. Examination findings may include hyperreflexia, Hoffmann sign, Babinski sign, and Lhermitte phenomenon, signs emphasized in teaching at University of Oxford, University of Cambridge, Imperial College London, University of Toronto, and University of Melbourne.

Degenerative changes of the cervical spine such as intervertebral disc degeneration, osteophyte formation, ligamentum flavum hypertrophy, and facet arthropathy produce spinal canal narrowing and chronic spinal cord compression, mechanisms explored in biomechanical studies from Massachusetts Institute of Technology, University of California, Berkeley, ETH Zurich, Technical University of Munich, and University College London. Chronic compression leads to ischemia, demyelination, and neuronal loss within the corticospinal tracts and dorsal columns, processes modeled in research from National Institutes of Health, Wellcome Trust, Max Planck Society, Institut Pasteur, and Karolinska Institutet. Genetic and systemic contributors such as ossification of the posterior longitudinal ligament have been described in populations studied by teams at Kyoto University, Seoul National University Hospital, Peking University Health Science Center, University of Tokyo, and University of São Paulo.

Diagnosis integrates clinical assessment, imaging, and neurophysiological testing following algorithms promoted by bodies like the American Academy of Neurology, North American Spine Society, European Academy of Neurology, Japanese Orthopaedic Association, and Royal College of Physicians. Magnetic resonance imaging performed at centers such as Mayo Clinic, Johns Hopkins Hospital, Massachusetts General Hospital, Cleveland Clinic, and Stanford University Medical Center identifies canal stenosis, cord signal change, and compressive lesions, while computed tomography is useful for osseous detail in evaluations at Karolinska Institutet, Charité – Universitätsmedizin Berlin, University of Toronto, Imperial College London, and University of Melbourne. Electrophysiological studies including somatosensory and motor-evoked potentials are employed in protocols from World Federation of Neurological Societies, Congress of Neurological Surgeons, American Association of Neuromuscular & Electrodiagnostic Medicine, European Society of Clinical Neurophysiology, and leading neurophysiology labs at National Institutes of Health.

Important alternatives considered by multidisciplinary teams at institutions like Johns Hopkins Hospital, Mayo Clinic, Massachusetts General Hospital, Cleveland Clinic, and UCSF Medical Center include multiple sclerosis, amyotrophic lateral sclerosis, peripheral neuropathies, cervical radiculopathy, spinal cord neoplasms, vitamin B12 deficiency, and normal-pressure hydrocephalus, diagnoses frequently discussed in educational materials from Harvard Medical School, Oxford University Hospitals, University of Cambridge, Stanford University, and Yale School of Medicine.

Management strategies span conservative care, rehabilitation, and surgical decompression, approaches outlined by the North American Spine Society, American Academy of Orthopaedic Surgeons, Congress of Neurological Surgeons, European Spine Society, and consensus statements from international panels convened at World Health Organization–affiliated meetings. Surgical techniques such as anterior cervical discectomy and fusion, posterior laminectomy, and laminoplasty are performed at high-volume centers including Mayo Clinic, Cleveland Clinic, Johns Hopkins Hospital, UCLA Health, and Mount Sinai Health System, while multidisciplinary rehabilitation involves specialists from Physiotherapy Association of India, American Physical Therapy Association, Canadian Physiotherapy Association, Chartered Society of Physiotherapy, and Australian Physiotherapy Association. Perioperative risk mitigation and outcome measurement use scales and registries promoted by National Institute for Health and Care Excellence, American College of Surgeons, European Spine Registry, and academic groups at Karolinska Institutet.

Outcomes vary: some patients stabilize or improve after decompression, whereas others have persistent disability, recurrent stenosis, or complications such as infection, hardware failure, or adjacent-segment disease, patterns documented in longitudinal studies from Johns Hopkins Hospital, Mayo Clinic, Massachusetts General Hospital, Seoul National University Hospital, and Peking University Health Science Center. Prognostic factors studied by research consortia at National Institutes of Health, Wellcome Trust, European Research Council, NIHR, and Japan Society for the Promotion of Science include age, duration of symptoms, degree of cord compression, and intramedullary signal change on MRI.

Cervical spondylotic myelopathy is the commonest cause of spinal cord dysfunction in adults over 55, with prevalence and incidence estimates derived from population studies conducted in regions served by Centers for Disease Control and Prevention, Public Health England, Statistics Canada, Australian Institute of Health and Welfare, and national cohorts reported by Istituto Superiore di Sanità and Instituto Nacional de Salud Pública. Risk factors include age-related degeneration, prior cervical trauma, congenital spinal canal stenosis, and metabolic conditions, associations examined in epidemiologic investigations at Harvard School of Public Health, Johns Hopkins Bloomberg School of Public Health, London School of Hygiene & Tropical Medicine, Karolinska Institutet, and University of Tokyo.

Category:Spine disorders