The true sagittal diameter of the cervical spinal canal and its diagnostic significance in cervical myelopathy

1977 ◽  
Vol 47 (6) ◽  
pp. 912-916 ◽  
Author(s):  
Isao Hashimoto ◽  
Yoon-Kil Tak
Keyword(s):  
Cervical Myelopathy ◽  
Spinal Canal ◽  
Cord Compression ◽  
Diagnostic Significance ◽  
Content Type ◽  
Sagittal Diameter ◽  
Cervical Spinal Canal ◽  
Upper Limits ◽  
Comparison Of The Results ◽  
Good Agreement

✓ A method is presented for measuring the true sagittal diameter of the cervical spinal canal on routine lateral radiograms by the use of a midline perforated ruler. Sagittal measurements were made in 92 normal adults to establish a range of normal values. The lower and upper limits were 10 mm and 17 mm, respectively, at the levels of C-3 to C-7. Comparison of the results with the anatomical measurements of dried specimens showed good agreement. Four cases of cord compression were presented and the diagnostic significance of the method in cervical myelopathy was discussed.

Vertical translocation: the enigma of the disappearing atlantodens interval in patients with myelopathy and rheumatoid arthritis. Part I. Clinical, radiological, and neuropathological features

1997 ◽  
Vol 87 (6) ◽  
pp. 856-862 ◽  
Author(s):  
Adrian T. H. Casey ◽  
H. Alan Crockard ◽  
Jennian F. Geddes ◽  
John Stevens
Keyword(s):  
Cervical Myelopathy ◽  
Survival Rates ◽  
Cord Compression ◽  
Atlantoaxial Subluxation ◽  
Lateral Mass ◽  
Progressive Decrease ◽  
Content Type ◽  
Statistical Comparison ◽  
High Cervical ◽  
Fine Print

✓ This statistical comparison between patients with cervical myelopathy secondary to horizontal atlantoaxial subluxation and those with vertical translocation is designed to elucidate the mechanisms responsible for cranial settling and the effect of translocation on the development of spinal cord compression. In a 10-year study of a cohort of 256 patients, 186 suffered from myelopathy and 116 (62%) of these exhibited vertical translocation according to the Redlund-Johnell criteria. Vertical translocation occurred after a significantly longer period of disease than atlantoaxial subluxation (p < 0.001). Translocation was characterized clinically by a high cervical myelopathy with features of a cruciate paralysis present in 35% of individuals compared with 26% who exhibited horizontal atlantoaxial subluxation (p = 0.29), but there was a surprising paucity of cranial nerve problems. The patients with vertical translocation had a greater degree of neurological disability (p = 0.002) and poorer survival rates (p = 0.04). Radiologically, vertical translocation was secondary to lateral mass collapse and associated with a progressive decrease in the atlantodens interval ([ADI], r = 0.4; p < 0.001) and pannus (p = 0.003). Thirty percent of patients exhibited an ADI of less than 5 mm. This phenomenon has been termed pseudostabilization. The authors' studies emphasize that the ADI (frequently featured in the literature) is totally unreliable as an indicator of neuraxial compromise in the presence of vertical translocation.

scholarly journals T1 Mapping Quantifies Spinal Cord Compression in Patients With Various Degrees of Cervical Spinal Canal Stenosis

2020 ◽  
Vol 11 ◽  
Author(s):  
Ilko L. Maier ◽  
Sabine Hofer ◽  
Eva Eggert ◽  
Katharina Schregel ◽  
Marios-Nikos Psychogios ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Compression ◽  
Spinal Canal ◽  
T1 Mapping ◽  
Cord Compression ◽  
Spinal Canal Stenosis ◽  
Canal Stenosis ◽  
Cervical Spinal Canal

Neurenteric cyst in the cervical spinal canal of a 10-week-old boy

1971 ◽  
Vol 35 (4) ◽  
pp. 472-476 ◽  
Author(s):  
Thomas E. Klump
Keyword(s):  
Spinal Canal ◽  
Neurological Symptoms ◽  
Neurenteric Cyst ◽  
Content Type ◽  
Cervical Spinal Canal ◽  
Fine Print

✓ A 10-week-old infant was found to have a cervicothoracic intradural neurenteric cyst which was operated on with resolution of the neurological symptoms. The discussion centers on the nature of the lesion and its possible pathogenesis.

Isolated cervical spinal canal stenosis at C-1 in the pediatric population and in Williams syndrome

2013 ◽  
Vol 18 (6) ◽  
pp. 558-563 ◽  
Author(s):  
Sohum K. Desai ◽  
Sudhakar Vadivelu ◽  
Akash J. Patel ◽  
Alison Brayton ◽  
Andrew Jea
Keyword(s):  
Williams Syndrome ◽  
Cervical Myelopathy ◽  
Spinal Canal ◽  
Pediatric Population ◽  
Demographic Data ◽  
Spinal Canal Stenosis ◽  
Cervical Canal ◽  
Duration Of Symptoms ◽  
Canal Stenosis ◽  
Cervical Spinal Canal

Object Isolated cervical canal stenosis at the level of the atlas (C-1) is a rare cause of cervical myelopathy in the pediatric population. It has been associated with several genetic disorders including spondyloepiphysial dysplasia congenita, Down syndrome, and Klippel-Feil syndrome. The purpose of this study is to highlight the authors' experience with 4 additional pediatric cases, review the literature, and report a new association of this disease with Williams syndrome. Methods The medical records and radiological imaging studies of 4 patients treated at Texas Children's Hospital for symptomatic hypoplasia of the atlas were retrospectively reviewed. Pertinent patient demographic data, clinical presentation, imaging findings, and outcomes after surgery were recorded. A thorough literature review was performed, allowing the authors to compare and contrast their 4 cases to surgical cases already published in the literature. Results There were 11 boys and 1 girl in the aggregate series. The average age of the patients was 7 years (range 13 months–14 years), and the duration of symptoms prior to presentation was 6 months (range 0–36 months). The mean sagittal diameter of the spinal canal at the level of the atlas measured from the posterior aspect of the dens to the anterior aspect of the arch of C-1 was 11.9 mm (range 8.3–16 mm) in the aggregate series. In 2 new pediatric patients with hypoplasia of the atlas the disease was associated with Williams syndrome, which has not been previously described. Patients in the aggregate series were followed for an average of 18 months (range 3–50 months). Laminectomy of C-1 provided neurological improvement in all patients who presented. Conclusions Isolated cervical spinal canal stenosis at the level of the atlas is a rare cause of cervical myelopathy. The authors hope that this report will prompt clinicians to consider it when searching for the origin of signs and symptoms of cervical myelopathy, especially in children.

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