The flexion-rotation test and active cervical mobility--a comparative measurement study in cervicogenic headache

Area of Science:

• Neurology
• Physical Therapy
• Biomechanics

Background:

• Cervicogenic headache (CEH) is a common condition often evaluated using cervical range of motion (CROM) assessments.
• Understanding the biomechanical differences in cervical motion between CEH patients and healthy individuals is crucial for diagnosis and treatment.

Purpose of the Study:

• To compare active and passive cervical range of motion between individuals with and without cervicogenic headache.
• To investigate the relationship between cervical range of motion, specifically passive rotation in flexion, and headache severity.

Main Methods:

• A single-blind, age and gender-matched comparative study involving 28 CEH patients and 28 asymptomatic controls.
• Active and passive cervical range of motion were measured using the Cervical Range of Motion Device by two blinded therapists.
• The flexion-rotation test was employed, and headache severity was assessed via questionnaire.

Main Results:

• Active cervical motion was similar between groups.
• Passive rotation in flexion was significantly reduced in CEH patients (28 degrees) compared to controls (44 degrees).
• Reduced passive rotation at the C1-2 segment was inversely correlated with headache severity in 24 of 28 CEH subjects.

Conclusions:

• Passive range of rotation in cervical flexion, particularly at C1-2, is impaired in individuals with cervicogenic headache.
• This impairment is associated with headache severity, suggesting a potential diagnostic and therapeutic target.