Table 1.
LSS diagnostic support tool
| Question | LSS score | |
|---|---|---|
| Q1 | Numbness and/or pain in the thigh(s) down to the calf (calves) and shin(s) | N.A. |
| Q2 | Difficulty bending forward because of numbness and/or pain | −1 |
| Q3 | Difficulty putting on socks because of numbness and/or pain | −1 |
| Q4 | Difficulty lying on the back with hip and knee extension because of numbness and/or pain | N.A. |
| Q5 | Difficulty sitting with knee extension of the involved leg | N.A. |
| Q6 | Numbness and/or pain increase in intensity after walking for a while, but are relieved by taking a rest | 5 |
| Q7 | Standing for a while brings numbness and/or pain in the thigh(s) down to the calf or calves and shin(s) | 5 |
| Q8 | Numbness and/or pain are reduced by bending forward | 1 |
| Q9 | Numbness is present, but pain is absent | 1 |
| Q10 | Numbness and/or pain is present in both feet | 2 |
| Q11 | Numbness is present in soles of both feet | 3 |
| Q12 | Numbness arises around the buttocks | 3 |
| Q13 | Feel the urge to urinate when walking | N.A. |
| Q14 | I am ≤40 years old | N.A. |
| Q15 | I am ≥60 years old | 4 |
Notes: Adapted from Aizawa T, Tanaka Y, Yokoyama T, et al. New diagnostic support tool for patients with leg symptoms caused by lumbar spinal stenosis and lumbar intervertebral disc herniation: a self-administered, self-reported history questionnaire. J Orthop Sci. 2016;21(5):579–585.10 Copyright 2016, with permission from Elsevier.
Abbreviations: LSS, lumbar spinal stenosis; N.A., not applicable; Q, question number.