A Trigger Point is most commonly defined as a “hyper-irritable spot, usually within a tight band of skeletal muscle”. The spot is painful on compression and can give rise to characteristic referred pain and tenderness. Trigger points can be local or distant from the origin of pain.
The formation of Trigger points in the lower extremity can be in response to a single traumatic event or repetitive micro-trauma. Biomechanical abnormalities can also lead to an increase in stress on the musculoskeletal system and promote the formation of trigger points.
Upon palpation of a Trigger point, a number of responses may be elicited.
- Local twitch response
- Jump sign
- Induction of referred pain.
Studies have shown acupuncture to be effective in relieving certain types of foot pain. A study published in the journal “Acupuncture in Medicine”, in 1996, found acupuncture to be effective in relieving otherwise unresponsive chronic foot pain.
Injection therapy is performed ‘dry’, through acupuncture. Needling is viewed as a definitive treatment for muscular pain, and is particularly indicated in the 20%-30% of cases that are unresponsive to standard treatment.