Range

Mean

Pre-Operative JOA Score of Points

Low back pain

0 - 1

1

Leg pain

0 - 2

0.6

Ability to walk

0 - 2

1.2

Straight leg raising

0 - 1

0.66

Sensory abnormalities

0 - 1

1

Motor weakness

0 - 2

1.5

Post-Operative JOA Score

Low back pain

1 - 2

1.7

Leg pain

1 - 2

2

Ability to walk

0 - 3

2.62

Straight leg raising

0 - 2

1.8

Sensory abnormalities

0 - 1

1

Motor weakness

0 - 2

1.76