Soft Tissue Stiffness Before and after Trigger Point Injections in Neck–Shoulder Myofascial Pain Syndrome: A Double-Blind, Randomized, and Controlled Crossover Trial with Botulinum Toxin A and Saline Injections

REFERENCES

• Tola S, Riihimäki H, Videman T, Viikari-Juntura E, Hänninen K: Neck and shoulder symptoms among men in machine operating, dynamic physical work and sedentary work. Scand J Work Environ Health 17: 299–305, 1988.
   Google Scholar
• Travell JG, Simons DG: Myofascial pain and dysfunction. The Trigger Point Manual, Williams and Wilkins, Baltimore, 1983, pp. 183–439.
   Google Scholar
• Baldry PE: Myofascial Pain and Fibromyalgia Syndromes: A Clinical Guide to Diagnosis and Management, Churchill Livingstone, Edinburgh, 2000, pp. 57–79, 103–118.
   Google Scholar
• Hubbard DR, Berkoff GM: Myofascial trigger points show spontaneous needle-EMG activity. Spine 18: 1803–1807, 1993.
   PubMed Web of Science ®Google Scholar
• Couppe C, Midttun A, Hilden J, Jörgensen U, Oxholm P, Fuglsang-Frederiksen A: Spontaneous needle electromyographic activity in myofascial trigger points in the infraspinatus muscle: A blinded assessment. J Musculoskelet Pain 9: 7–17, 2001.
   Web of Science ®Google Scholar
• Simons DG, Hong C-Z, Simons LS: Endplate potentials are common to midfiber myofascial trigger points. Am J Phys Med Rehabil 81: 212–222, 2002.
   PubMed Web of Science ®Google Scholar
• Chung JW, Ohrbach R, McCall Jr. WD: Characteristics of electrical activity in trapezius muscles with myofascial pain. Clin Neurophys 117: 2459–2466, 2006.
   PubMedGoogle Scholar
• Durette MR, Rodriquez AA, Agre JC, Silverman JL: Needle electromyographic evaluation of patients with myofascial or fibromyalgic pain. Am J Phys Med Rehabil 70: 154–156, 1991.
   PubMed Web of Science ®Google Scholar
• Simons DG, Mense S: Understanding and measurement of muscle tone as related to clinical muscle pain. Pain 75: 1–17, 1998.
   PubMed Web of Science ®Google Scholar
• Waddell G, Main CJ, Morris EW, Venner RM, Rae PS, Sharmy SH, ,: Normality and reliability in the clinical assessment of backache. Br Med J (Clin Res Ed) 284: 1519–1523, 1982.
   PubMed Web of Science ®Google Scholar
• Fischer AA: Tissue compliance meter for objective, quantitative documentation of soft tissue consistency and pathology. Arch Phys Med Rehabil 68: 122–125, 1987.
   PubMed Web of Science ®Google Scholar
• Leonard CT, Stephens JU, Stroppel SL: Assessing the spastic condition of individuals with upper motoneuron involvement: Validity of the myotonometer. Arch Phys Med Rehabil 82: 1416–1420, 2001.
   PubMed Web of Science ®Google Scholar
• Leonard CT, Deshner WP, Romo JW, Suoja ES, Fehrer SC, Mikhailenok EL: Myotonometer intra- and interrater reliabilities. Arch Phys Med Rehabil 84: 928–932, 2003.
   PubMedGoogle Scholar
• Bizzini M, Mannion AF: Reliability of a new, hand-held device for assessing skeletal muscle stiffness. Clin Biomech 18: 459–461, 2003.
   PubMed Web of Science ®Google Scholar
• Arokoski JPA, Surakka J, Ojala T, Kolari P, Jurvelin JS: Feasibility of the use of a novel soft tissue stiffness meter. Physiol Meas 26: 215–228, 2005.
   PubMed Web of Science ®Google Scholar
• Nansel DD, Waldorf T, Cooperstein R: Effect of cervical spinal adjustments on lumbar paraspinal muscle tone: Evidence for facilitation of intersegmental tonic neck reflexes. J Manipulative Physiol Ther 16: 91–95, 1993.
   PubMedGoogle Scholar
• Albright GL, Fischer AA: Effects of warming imagery aimed at trigger-point sites on tissue compliance, skin temperature, and pain sensitivity in biofeed-trained patients with chronic pain: A preliminary study. Perceptual and Motor Skills 71: 1163–1170, 1990.
   PubMedGoogle Scholar
• Simons DG: Diagnostic criteria of myofascial pain caused by trigger points. J Musculoskelet Pain 7: 111–120, 1999.
   Web of Science ®Google Scholar
• Cheshire WP, Abashian SW, Mann JD: Botulinum toxin in the treatment of myofascial pain syndrome. Pain 59: 65–69, 1994.
   PubMed Web of Science ®Google Scholar
• Göbel H, Heinze A, Reichel G, Hefter H, Benecke R: Efficacy and safety of a single botulinum type A toxin complex treatment (Dysport®) for the relief of upper back myofascial pain syndrome: Results from a randomized double-blind placebo-controlled multicentre study. Pain 125: 82–88, 2006.
   PubMed Web of Science ®Google Scholar
• Porta M: A comparative trial of botulinum toxin type A and methylprednisolone for the treatment of myofascial pain syndrome and pain from chronic muscle spasm. Pain 85: 101–105, 2000.
   PubMed Web of Science ®Google Scholar
• Tunks E, Crook J: Regional soft tissue pains: Alias myofascial pain? Baillieres Clin Rheumatol 13: 345–370, 1999.
   PubMedGoogle Scholar
• Dressler D, Saberi FA, Barbosa ER: Botulinum toxin: Mechanisms of action. Arq Neuropsiquiatr 63(1): 180–185, 2005.
   PubMed Web of Science ®Google Scholar
• Viikari-Juntura E, Takala EP, Alaranta H: Neck and shoulder pain and disability. Evaluation by repetitive gripping test. Scand J Rehabil Med 20(4): 167–173, 1988.
   PubMedGoogle Scholar
• Youdas J, Carey J, Garret T: Reliability of measurement cervical spine range of motion – comparison of three methods. Phys Ther 2: 98–106, 1991.
   Google Scholar
• Fischer AA: Pressure threshold meter: Its use for quantification of tender spots. Arch Phys Med Rehabil 67: 836–839, 1986.
   PubMed Web of Science ®Google Scholar
• Ojala T, Arokoski JP, Partanen J: The effect of small doses of botulinum toxin A on neck-shoulder myofascial pain syndrome: A double-blind, randomized, and controlled crossover trial. Clin J Pain 22: 90–96, 2006.
   PubMed Web of Science ®Google Scholar
• Ojala TA, Arokoski JP, Partanen JV: Needle-electromyography findings of trigger points in neck-shoulder area before and after injection treatment. J Musculoskelet Pain 14: 5–14, 2006.
   Web of Science ®Google Scholar
• Hägg GM: Human muscle fibre abnormalities related to occupational load. Eur J Appl Physiol 83: 159–165, 2000.
   PubMed Web of Science ®Google Scholar
• Hong C-Z, Simons DG: Pathophysiologic and electrophysiologic mechanisms of myofascial trigger points. Arch Phys Med Rehabil 79: 863–872, 1998.
   PubMed Web of Science ®Google Scholar
• Rivner M: The neurophysiology of myofascial pain syndrome. Curr Pain Headache Rep 5: 432–440, 2001.
   PubMedGoogle Scholar
• Ashina M, Bendtsen L, Jensen R, Sakai F, Olesen J: Muscle hardness in patients with chronic tension-type headache: Relation to actual headache state. Pain 79: 201–205, 1999.
   PubMed Web of Science ®Google Scholar
• Sakai F, Ebihara S, Akiyama M, Horikawa M: Pericranial muscle hardness in tension-type headache. A non-invasive measurement method and its clinical application. Brain 118: 523–531, 1995.
   PubMed Web of Science ®Google Scholar
• Kashima K, Igawa K, Maeda S, Sakoda S: Analysis of muscle hardness in patients with masticatory myofascial pain. J Oral Maxillofac Surg 64: 175–179, 2006.
   PubMed Web of Science ®Google Scholar
• Waldorf T, Devlin L, Nansel PD: The comparative assessment of paraspinal tissue compliance in asymptomatic female and male subjects in both prone and standing positions. J Manipulative Physiol Ther 14: 457–461, 1991.
   PubMed Web of Science ®Google Scholar
• Ylinen J, Teittinen I, Kainulainen V, Kautiainen H, Vehmaskoski K, Häkkinen A: Repeatability of a computerized muscle tonometer and the effect of tissue thickness on the estimation of muscle tone. Physiol Meas 27: 787–796, 2006.
   PubMedGoogle Scholar
• Horikawa M: Effect of visual display terminal height on the trapezius muscle hardness: Quantitative evaluation by a newly developed muscle hardness meter. Appl Ergon 32: 473–478, 2001.
   PubMedGoogle Scholar
• Hayes WC, Keer LM, Herrmann G, Mockros LF: A mathematical analysis for indentation tests of articular cartilage. J Biomech 5: 541–551, 1972.
   PubMed Web of Science ®Google Scholar
• Mak AF, Lai W, Mow VC: Biphasic indentation of articular cartilage—I. Theoretical analysis. J Biomech 20: 703–714, 1987.
   PubMed Web of Science ®Google Scholar
• Sanders GE, Lawson DA: Stability of paraspinal tissue compliance in normal subjects. J Manipulative Physiol Ther 15: 361–364, 1992.
   PubMedGoogle Scholar