High-resolution, three-dimensional magnetic resonance imaging axial load dynamic study improves diagnostics of the lumbar spine in clinical practice

Table 6 Degenerative pathologies of the lumbar spine

Analyzed factors	Grade	n	%
Intervertebral disc degeneration according to Pfirrmann et al[38] classification	1	0	0
	2	72	16
	3	196	44
	4	159	35
	5	23	5
Facet joint degeneration, according to Weishaupt et al[39] classification	0	300	33
	1	405	45
	2	149	17
	3	46	5
Grade of lumbar spinal canal stenosis according to Schizas et al[40] classification	A1	349	78
	A2	22	5
	A3	47	10
	A4	3	1
	B	20	4
	C	7	2
	D	2	0
Disc herniation according to the Michigan State University[42] classification of lumbar disc herniation	0	342	76
	1a, 1b, 1ab, 1c	88	20
	2a, 2b, 2ab, 2c	18	4
	3a, 3b, 3ab, 3c	2	0
Foraminal stenosis, according to Lee et al[41] classification	0	664	74
	1	168	19
	2	56	6
	3	12	1