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Table 4 The model to predict responsible nerve roots in LDD patients with diagnostic doubt

From: A valid model for predicting responsible nerve roots in lumbar degenerative disease with diagnostic doubt

A

B

C

D

E

Total score

Result

Risk (%)

Stenosis locations

Score

VAS score

Score

Neurological deficit

Score

VAS improvement

Score

SNRB nerve roots

Score

Neuroforamen

4

ā‰„8

3

Motor

1

ā‰„75

7

L4/5 Or L5/S1

3

ā‰„16

Very high

ā‰„89.3

5ā€‰~ā€‰7

2

Sensory

1

50ā€‰~ā€‰74

5

11ā€‰~ā€‰16

High

57.6ā€‰~ā€‰82.7

Lateral recess or Central

0

3ā€‰~ā€‰5

1

Reflexes

1

25ā€‰~ā€‰49

3

Others

0

5ā€‰~ā€‰10

Low

12.5ā€‰~ā€‰49.4

ā‰¤2

0

None

0

ā‰¤24

0

<5

Very low

<8.6

  1. LDD lumbar degenerative disease, SNRB selective nerve root block, VAS Visual analog scale