Kanhachon Wilawan, Boonprakob Yodchai
Graduate School, Khon Kaen University, Khon Kaen, 40002, Thailand; Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen, 40002, Thailand.
Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen, 40002, Thailand; School of Physical Therapy, Faculty of Associated Medical Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
J Bodyw Mov Ther. 2022 Jan;29:198-205. doi: 10.1016/j.jbmt.2021.09.023. Epub 2021 Oct 23.
Although scapulocostal syndrome (SCS) and masticatory myofascial pain (MMP) occur in different regions, the concept of myofascial linkage and neurophysiology may be proven per the connection of the two disorders. Therefore, this study aimed to investigate the correlation between SCS and MMP on selected pain and functional parameters.
75 participants with SCS participated in the protocol. The diagnosis of SCS was considered by the presence of muscle referred pain in the medial scapular muscles. All participants were measured for pain intensity, pressure pain threshold (PPT), and craniovertebral angle (CV-angle) for pain and functional parameters related to SCS. They were measured for pain intensity, PPT, and mouth distance for the pain and functional parameters related to MMP. The diagnosis of MMP was considered by the presence of muscle tenderness of the masticatory muscle and the decreasing of mouth opening distance. The correlation between SCS and MMP was determined using Pearson's correlation coefficient and Spearman's correlation.
Participants exhibiting SCS were diagnosed for MMP at 74.67%. The results showed positive correlations in pain intensity and PPT between SCS and MMP (r = 0.367, r = 0.478, p < 0.01), PPT of SCS, and mouth distance amid both pain-free and maximum mouth opening conditions, respectively (r = 0.290, r = 0.282, p < 0.05).
In conclusion, SCS and MMP present an association with each other in terms of both selected pain, and functional parameters. Thus, a treatment program for SCS patients should be concerned with the masticatory muscles even if they did not report any pain at the jaw area.
尽管肩胛胸廓综合征（SCS）和咀嚼肌筋膜疼痛（MMP）发生在不同区域，但根据这两种疾病的关联，肌筋膜联系和神经生理学的概念可能得到证实。因此，本研究旨在探讨SCS与MMP在选定的疼痛和功能参数方面的相关性。
75名患有SCS的参与者参与了该方案。通过肩胛内侧肌肉存在肌肉牵涉痛来诊断SCS。所有参与者均测量了与SCS相关的疼痛强度、压痛阈（PPT）和颅椎角（CV角）等疼痛和功能参数。他们还测量了与MMP相关的疼痛强度、PPT以及无痛和最大张口情况下的张口距离。通过咀嚼肌存在肌肉压痛和张口距离减小来诊断MMP。使用Pearson相关系数和Spearman相关性来确定SCS与MMP之间的相关性。
表现出SCS的参与者中有74.67%被诊断为MMP。结果显示SCS与MMP之间在疼痛强度和PPT方面呈正相关（r = 0.367，r = 0.478，p < 0.01），SCS的PPT与无痛和最大张口情况下的张口距离之间也呈正相关（r = 0.290，r = 0.282，p < 0.05）。
总之，SCS和MMP在选定的疼痛和功能参数方面相互关联。因此，即使SCS患者在颌面部区域未报告任何疼痛，针对SCS患者的治疗方案也应关注咀嚼肌。
