Lumbar stenosis predictor rules:
The picture above is from the website: colepaintherapygroup.com
Lumbar stenosis predictor rules are below:
|Absence of diabetes||1|
|Intermittent claudication (leg pain from clogged arterties with activity)||3|
|Exacerbation of symptoms when standing up||2|
|Symptom improvement when bending forward||3|
|Symptoms induced by having patients bend forward||−1|
|Symptoms induced by having patients bend backward||1|
|Good peripheral artery circulation||3|
|Abnormal Achilles tendon reflex||1|
|Straight leg raise test positive (Lifting the leg straight from 30 to 70 degrees and sciatica is experienced)||−2|
- A score equal or greater than 7 has a sensitivity of 92.8% and a specificity of 72.0% for the diagnosis of symptomatic lumbar spinal stenosis
- Konno S, Hayashino Y, et al. European spine journal.2007;16(11):1951–7.
The basic definition of sensitivity is the more sensitive a test is the more likely it is that you can rule a condition out. The basic definition of specificity is the more specific a test is the more likely you can rule in a condition.