Table 2.
Prediction rule for identifying patients with LSS.11
| Clinical Finding | Risk score assigned | Risk score for current patient |
|---|---|---|
| History | ||
| Age (years) | ||
| • 60–70 | 1 | 1 |
| • >70 | 2 | 0 |
| Absence of diabetes | 1 | 0 |
| Neurogenic claudication | 3 | 3 |
| Exacerbation of symptoms when standing up | 2 | 2 |
| Symptom improvement when bending forward | 3 | 3 |
| Physical examination | ||
| Symptoms induced by having patients bend forward | −1 | 0 |
| Symptoms induced by having patients bend backward | 1 | 1 |
| Good peripheral artery circulation | 3 | Not performed |
| Abnormal Achilles tendon reflex | 1 | 1 |
| Straight leg raising positive for reproducing pain | −2 | −2 |
| Score interpretation | ||
| Score range | −2 to 17 | |
| Positive score | ≥7 | 9 |