Validation of a clinical examination to differentiate a cervicogenic source of headache: a diagnostic prediction model using controlled diagnostic blocks.

Objectives: Neck pain commonly accompanies recurrent headaches such as migraine, tension-type and cervicogenic headache. Neck pain may be part of the headache symptom complex or a local source. Patients commonly seek neck treatment to alleviate headache, but this is only indicated when cervical musculoskeletal dysfunction is the source of pain.

Criterion-related validity of a clinical measure of dorsal first ray mobility.

Study Design: Test-retest methodological design using a sample of convenience.

Objective: To determine the criterion-related validity and the reliability of measuring first ray mobility with a ruler.

Background: Studies have questioned the accuracy of assessing first ray mobility by manual examination.