Characteristics of referred muscle pain to the head from active trigger points in women with myofascial temporomandibular pain and fibromyalgia syndrome

The Journal of Headache and Pain

Original

Peter Svensson¹  Cristina Alonso-Blanco²  Fernando Galán-del-Río³  Ana Isabel de-la-Llave-Rincón³  César Fernández-de-las-Peñas⁴  Pedro Zarco-Moreno⁵ 

[1] Department of Clinical Oral Physiology, School of Dentistry, University of Aarhus, Aarhus, Denmark;Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus, Denmark;Orofacial Pain Laboratory, Center for Sensory-Motor Interaction, Aalborg University, Aalborg, Denmark;Department of Nursing, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain;Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain;Esthesiology Laboratory of Universidad Rey Juan Carlos, Alcorcón, Spain;Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain;Esthesiology Laboratory of Universidad Rey Juan Carlos, Alcorcón, Spain;Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Avenida de Atenas s/n, 28922, Alcorcón, Madrid, Spain;Department of Rheumatology, Fundación Hospital Alcorcón, Alcorcón, Spain;

关键词: Temporomandibular disorders;    Fibromyalgia;    Trigger points;    Referred pain;    Pain assessment;   

DOI  :  10.1007/s10194-012-0477-y

 received in 2012-07-21, accepted in 2012-08-18,  发布年份 2012

来源: Springer

【 摘 要 】

Our aim was to compare the differences in the prevalence and the anatomical localization of referred pain areas of active trigger points (TrPs) between women with myofascial temporomandibular disorder (TMD) or fibromyalgia (FMS). Twenty women (age 46 ± 8 years) with TMD and 20 (age 48 ± 6 years) with FMS were recruited from specialized clinic. Bilateral temporalis, masseter, sternocleidomastoid, upper trapezius, and suboccipital muscles were examined for TrPs. TrPs were identified by palpation and considered active when the pain reproduced familiar pain symptom experienced by the patient. The referred pain areas were drawn on anatomical maps, digitalized and also measured. A new analysis technique based on a center of gravity (COG) method was used to quantitative estimate of the localization of the TrP referred pain areas. Women with FMS exhibited larger areas of usual pain symptoms than women with myofascial TMD (P < 0.001). The COG coordinates of the usual pain on the frontal and posterior pain maps were located more superior in TMD than in FMS. The number of active TrPs was significantly higher in TMD (mean ± SD 6 ± 1) than in FMS (4 ± 1) (P = 0.002). Women with TMD exhibited more active TrPs in the temporalis and masseter muscles than FMS (P < 0.01). Women with FMS had larger referred pain areas than those with TMD for sternocleidomastoid and suboccipital muscles (P < 0.001). Significant differences within COG coordinates of TrP referred pain areas were found in TMD, the referred pain was more pronounced in the orofacial region, whereas the referred pain in FMS was more pronounced in the cervical spine. This study showed that the referred pain elicited from active TrPs shared similar patterns as usual pain symptoms in women with TMD or FMS, but that distinct differences in TrP prevalence and location of the referred pain areas could be observed. Differences in location of referred pain areas may help clinicians to determine the most relevant TrPs for each pain syndrome in spite of overlaps in pain areas.

【 授权许可】

CC BY   
© The Author(s) 2012