Cervical Spondylotic Myelopathy (CSM) Cluster

The Cluster consists of the following items:

1. Gait deviation
2. Positive Hoffman’s Sign
3. Positive Inverted Supinator Sign
4. Positive Babinski Sign
5. Age > 45 years

 

Positive Outcome:3 or more out of 5 to confirm CSM or 1 or less to rule out CSM

Study	Reliability	Sn	Sp	LR+	LR-
Cook et al. (2010): 3 out of 5	94	19	99	30.9	0.81
Cook et al. (2010): 1 out of 5	Na	94	31	1.4	0.18
Comment: Although not validated yet this clusters may be useful in identifying patients with this complex diagnosis in similar patient populations, as well as helpful to rule out CSM.