Effectiveness Of Trigger Point On Patients With Low Back Pain

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Effectiveness of Trigger Point Dry Needling Compared to Therapeutic Ultrasound in Patients with Low Back Pain.
Back pain is one of the most common health complaints in the United States and around the world. Back pain affects 8 out of 10 people at some point during their lives.1 One quarter of the US adult population describes having low back pain at least one day over a three month period; 7.6% of the population reported severe acute low back pain in a one year period. 2 In a survey conducted by the National Institute of Health Statistics, 28.4% population reported low back pain as the leading source of pain. 3
Low-back pain is also the most common cause of job-related disability and a leading contributor to missed work.4, 5, 6
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Deep dry needling and paraspinal dry needling also reduces pain from myofascial trigger points. 13 Despite the effectiveness of dry needling there are inconsistent research studies about trigger point diagnosis through palpation and physical examination.14
Myofascial trigger points (MTrPs) are widely accepted by clinicians and researchers as a primary source of regional neuro-musculoskeletal pain.15, 16 Travell and Simons define MTrPs as ‘hyperirritable points located in taut bands of skeletal muscle, which when compressed, produce a referred pain characteristic of that muscle and a pain that the subject recognizes.15, 17 MTrPs are theorized to develop in muscle tissue in response to injury. Studies have shown that MTrPs are commonly seen in acute and chronic pain conditions, and in nearly all orthopedic conditions. 18,19
Two of the more popular models described in the literature include the myofascial trigger point model and the radiculopathy model.20, 21, 22, 23 Janet Travell MD pioneered the use of MTrP injections that eventually led to the development of the trigger point model of dry needling. The trigger point model specifically targets MTrPs as the clinical manifestation of myofascial pain syndrome (MPS).20, 23 Myofascial trigger points may consist of multiple contraction knots, which are theorized to be present, secondary to an excessive release of acetylcholine (ACh)
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