MRI of Cervical OPLL

MRI findings of 41 patients with cervical OPLL were investigated. The 41 patients consisted of 28 males and 13 females with a mean age of 59 years (range, from 43 to 80 years). According to the morphological classification of OPLL, 12 patients had continuous type, 13 had mixed type, and 16 had segme...

Full description

Saved in:
Bibliographic Details
Published inOrthopedics & Traumatology Vol. 39; no. 1; pp. 237 - 242
Main Authors Miyazaki, Shinpei, Nagata, Kensei, Takamatsu, Toru, Sagara, Masashi, Inoue, Akio
Format Journal Article
LanguageEnglish
Published West-Japanese Society of Orthopedics & Traumatology 1990
Online AccessGet full text

Cover

More Information
Summary:MRI findings of 41 patients with cervical OPLL were investigated. The 41 patients consisted of 28 males and 13 females with a mean age of 59 years (range, from 43 to 80 years). According to the morphological classification of OPLL, 12 patients had continuous type, 13 had mixed type, and 16 had segmental type. The ratio of spinal canal narrowness by OPLL was measured on roentgenograms and compared with the MRI findings. Spinal cord compression on T1-weighted sagittal images was little demonstrated in the patients with a narrowing ratio of less than 30%. Dural tube compression on T2-weighted images was not seen in the patients with a narrowing ratio of less than 20%. T2-weighted axial image was a most sensitive method for demonstrating OPLL. Degenerative changes of disc on MR image were frequently observed at the level of OPLL; 100% of segmental type, 93% of continuous type and of mixed type.
ISSN:0037-1033
1349-4333
DOI:10.5035/nishiseisai.39.237