Volume 29, Issue 113 (3-2020)                   jour guilan uni med sci 2020, 29(113): 43-50 | Back to browse issues page

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Yousefzadeh Chabok S, Ezzati K, Saberi A, Hosein Zadeh J. Evaluating the Prevalence of Lumbar Myofascial Pain Syndrome in Patients with Non-specific Chronic Low Back Pain and a Normal MRI Study. jour guilan uni med sci. 2020; 29 (113) :43-50
URL: http://journal.gums.ac.ir/article-1-2245-en.html
Abstract:   (712 Views)
Abstract
Introduction: Low back pain is a very common disorder that affects a significant percentage of people in the community (1). As a non-mechanical cause, myofascial pain is a primary disorder which may produce lumbar and lower limb pain and is not necessarily secondary to other diagnosis (2-5). Trigger points are the main symptoms of myofascial pain which may mimic the radicular pain in spinal disorders (6, 7).
Objective: To evaluate the prevalence of lumbar myofascial pain syndrome in patients with non-specific chronic low back pain and a normal MRI study.
Materials and Methods: This cross-sectional study was conducted on 171 patients with chronic low back pain and normal MRI report (age:43.96 ±13.6years), (weight:76.7± 71.74 kg), ( height: 166.44 ± 7.15 cm). Incidence of this syndrome was evaluated in 16 lumbar and lower extremity muscles (8). The trigger points finding was performed by tissue palpation (9).
Results: Females constituted 71.7 % and males 28.3 % of the participants. The patients maximum incidence percentages were in quadratus lumborum (47.7℅)‚ multifidus(43℅)‚ gluteus medius (36℅)‚ gluteus maximus (34.9℅)‚ piriformis (32.4℅) and other muscles involvement was below 30℅. In 27.7% of the patients only two muscles were involved. A significant correlation was shown between the number of involved muscles and age(r=0.21, p=0.005) and pain and disability(r=0.46, p=0.03).
Conclusion: Myofascial pain syndrome should be considered as a hallmark in differentiating chronic low back pain regardless of MRI finding.
Conflict of interest: non declared
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Type of Study: Research | Subject: Special
Received: 2020/03/24 | Accepted: 2020/03/24 | Published: 2020/03/24

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