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Table 1 MRI findings and corresponding classifications

From: Degenerative findings on MRI of the cervical spine: an inter- and intra-rater reliability study

MRI finding Category Description
Kyphosis 0 Normal or straightened lordosis
1 Kyphosis
Disc height 0 Normal
1 Reduced height
Disc contour 0 Normal
1 Bulge or protrusion
2 Extrusion
Spinal canal stenosis 0 Normal
1 >  50% obliteration of CSF, no cord deformity
2 >  50% obliteration of CSF with cord deformity but no signal change
3 >  50% obliteration of CSF with cord deformity and signal change
Vertebral endplate signal change 0 Normal
1 Type 1
2 Type 2
3 Type 3
4 Mixed type 1 and 2
Uncovertebral osteoarthritis 0 Normal
1 Definite osteoarthritis
Zygapophyseal osteoarthritis 0 Normal
1 Definite osteoarthritis
Neural foraminal stenosis 0 Normal or < 50% fat obliteration
1 ≥ 50% fat obliteration with or without morphological changes of the nerve root
  1. CSF cerebrospinal fluid