The effects of auriculotherapy and dry needling on myofascial pain syndrome

Devlikamova F.I.
Kazalo Medical Academy, Central Hospital of Tatarstan, Russia

The Myofascial pain syndrome (MPS) is a common neuromuscular dysfunction due to trigger points (TrPs) in skeletal muscle. A myofascial TrP is a pathological sensomotor system responsible for a disturbed functional state of muscle, segmental apparatus of the spinal cord, supraspinal structures of the central nervous system (CNS). The long loop reflex ( LLR) component is realised not only through a spinal cord segment but also through some suprasegmental structures. LLR to electrical stimulation (impulses of 1 ms in duration, 0.1 Hz frequency) of the medianus nerve were studied in 16 patients (aged 14-50 years) with trapezius MPS and 10 healthy aged-matched individuals.

The reflex response of trapezius muscle was registrated using concentric needle electrode with a recording area of 0.07 mn and 4-chunnel EMG equipment (Counterpoint. Dantec). The auricular acupuncture (AAP) was made in the internal part of antitragus points and in CNS point (4-6 AAP needles simultaneously). At the same time the patient underwent a dry needling of trapezius muscle TrP by means of disposable entry needle. The needle was partially withdrawn and reinserted into another part of TrP. These procedures could be repeated until the local tenderness and pain referred from that particular TrP will usually disappear immediately, and frequently, completely.

There were statistically significant changes in the structure of LLR the muscles with myofascial TrPs after the complex influence. This clinical study confirms the effects of AAP on the reflex at spinal and supraspinal levels. and therapeutic effect on emotional factors influence muscle pain. The formation TrP is influenced and controlled by the CNS, and a needle stimulation to a TrP may deliver a strong signal to the CNS to induce a strong reflex and torelieve or reorganize the CN S control of TrP.


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