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Trigger Point Injection

Trigger points or trigger sites are described as hyperirritable spots in skeletal muscle that are associated with palpable nodules in taut bands of muscle fibers. The irritable point is not caused by, but may result from, acute local trauma, inflammation, degeneration.

Palpation of the trigger point reproduces the patient's complaint of pain, and the pain radiates in a distribution typical of the specific muscle harboring the trigger point.

The pain cannot be explained by findings on neurological examination.

Trigger Point injection provides immediate relief and can be effective when other methods fail. Various injections can be used including saline or local anesthetics such as lidocaine.
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