Table 1 Distribution of all relevant MRI findings in all participants. The most common findings being disc degeneration and disc herniation

Facet Joint Arthropathy

4

T12/L1

0

L1/L2

0

L2/L3

0

L3/L4

2

L4/L5

4

L5/S1

2

Synovial Cyst

2

T12/L1

0

L1/L2

0

L2/L3

0

L3/L4

0

L4/L5

2

1R,1L

Posterior FJ

3mm, 4mm

L5/S1

1

1R

Posterior FJ

3mm

Pars Abnormality

4

L1

0

L2

0

L3

0

L4

3

1R, 2L

2,2,2

L5

2

1R, 1L

4,2

Disc Abnormalities

Modic Endplate

0

Degeneration

7

T12/L1

1

2*

L1/L2

1

2*

L2/L3

1

2*

L3/L4

2

2*

L4/L5

2

2,3*

L5/S1

5

2,2,2,3,3*

HIZ

0

Herniation

5

T12/L1

0

L1/L2

0

L2/L3

0

L3/L4

1

1 Circumferential

L4/L5

0

L5/S1

4

2 Central,

2 Circumferential

Thecal Sac Indentation

0

Spinal Cord Abnormality

Compression

0

Myelopathy

0

Signal Abnormality

0

Syrinx

0

Other findings

Transitional vertebra

3

Benign haemangioma

1

S1

1

Schmorl’s nodes

4

T11/T12

T12/L1

L1/2

L2/3

L3/4

L4/L5

L5/S1

1

2

1

1

2

1

1

Partial lumbarisation

1

S1

1

Sacralisation

1

L5

1

Endplate concavities

1

L2

1

L3

1

L5

1

Limbus vertebrae

1

T12

1

L1

1

L4

1

Lumbarisation

1

S1

1

Bilateral dysplastic pedicles

1

L5

1