Tension-type headache and low back pain reconsidered

Area of Science:

• Neurology
• Pain Medicine
• Musculoskeletal Disorders

Background:

• Tension-type headache and non-specific low back pain are common, yet poorly understood conditions.
• Both conditions exhibit a high risk of chronicity and affect women disproportionately.
• Clinical features suggest shared underlying pathology beyond localized spinal or muscular issues.

Purpose of the Study:

• To re-examine the natural history and clinical course of tension-type headache and non-specific low back pain.
• To identify shared clinical features and propose an analogous pathophysiology.
• To introduce a new term, 'spinal dyssynergia,' for this pattern of pathology.

Main Methods:

• Comparative analysis of clinical features of tension-type headache and non-specific low back pain.
• Review of electromyography (EMG) findings indicating muscle hyperactivity and discoordination.
• Conceptual framework linking shared features to neuromotor control dysfunction.

Main Results:

• Identified shared features: spinal muscular pain, female preponderance, spontaneous or trivial trauma onset, high chronicity risk, muscle tenderness, EMG-indicated hyperactivity, and discoordinated motor control.
• Proposed analogous pathophysiology involving neuromotor control of cervical and lumbar muscles.
• Suggested the term 'spinal dyssynergia' to describe this condition.

Conclusions:

• Tension-type headache and non-specific low back pain may represent a 'family' of conditions with a common pathophysiology rooted in the central nervous system.
• 'Spinal dyssynergia' offers a new perspective, shifting focus from spinal structures to neuromotor control.
• Further research into clinical, neurophysiological, and neuropharmacological aspects is warranted.