WikiMSK:Calculators/Laslett Criteria

From WikiMSK
Laslett's "Clinical Prediction Rule 5" for predicting positive screening medial branch block
Criteria Points Present
Age > 50 1
Symptoms best walking 1
Symptoms best sitting 1
Onset pain is paraspinal 1
Positive extension/rotation test 1
Probability Negative (0)

3 or more criteria has a positive likelihood ratio of 9.7 (5.0, 18.8) and negative likelihood ratio of 0.17 (0.05, 0.60) for positive initial screening medial branch block[1]

References

  1. โ†‘ Laslett M, McDonald B, Aprill CN, Tropp H, Oberg B. Clinical predictors of screening lumbar zygapophyseal joint blocks: development of clinical prediction rules. Spine J. 2006 Jul-Aug;6(4):370-9. doi: 10.1016/j.spinee.2006.01.004. PMID