الفهرس 
The value of cervical MRI in surgical lumbar canal stenosis patients
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Abstract
Background: Spinal stenosis is a progressive narrowing of the spinal canal that occurs most commonly in the cervical and lumbar areas because cervical and lumbar spines are the most liable for wear and tear unlike dorsal spine due to its attachment to the ribs.The prevalence of lumbar spinal stenosis is about 9.3%, with people in their 60s and 70s are the most commonly affected. (75) The prevalence of cervical canal stenosis alone is estimated to be present in 4.9% of the adult population, 6.8% of the population fifty years of age or older, and 9% of the population seventy years of age or older.(53) The incidence of TSS ranges from 5% to 25%, with apreponderance of cases in males greater than 50 years old(22) As the incidence and number of lumbar spinal surgeries is increasing .It is a must to exclude associated cervical stenosis. Objective: To estimate the co-existance of cervical canal stenosis in surgical lumbar canal stenosis patients and it{u2019}s reflection on decision making regarding surgery. So we can determine the actual prevalence of spondylotic cervical cord compression in patients with symptomatic lumbar spinal stenosis to avoid the various complications resulting from spinal surgery in the form of unexpected neurological deterioration due to more proximal lesion. Methods: It is a prospective study that was conducted on 70 cases with symptomatic lumbar canal stenosis whether in the outpatient clinic or inpatient ward