Injecction of trigger points in the temporal muscles of patients with miofascial syndrome

Objective : The aim was to examine the effect of blocking trigger points in the temporal muscles of patients with masticatory myofascial pain syndrome, fibromyalgia and headache.Method : Seventy patients with one trigger point were randomly divided into 3 groups: injection with saline or anesthetic and non-injected (control).Results : Pain was reduced in 87.71% patients injected with saline and 100% injected with anesthetic. Similar results were obtained for headache frequency. With regard to headache intensity, the injection groups differed from the control group, but not between themselves.Conclusion : Treatment with injection at trigger points decreased facial pain and frequency and intensity of headache. Considering the injected substance there was no difference.

研究目的：本研究旨在探讨阻断咀嚼肌筋膜疼痛综合征（masticatory myofascial pain syndrome）、纤维肌痛（fibromyalgia）及头痛患者颞肌触发点（trigger point）的临床效果。研究方法：将70例存在单处触发点的患者随机分为3组：生理盐水注射组、麻醉剂注射组及非注射对照组。研究结果：生理盐水注射组疼痛缓解率达87.71%，麻醉剂注射组为100%；头痛发作频率的改善结果与之相似。针对头痛强度而言，注射治疗组与对照组存在显著差异，但两组注射治疗组之间并无统计学差异。研究结论：对触发点实施注射治疗可减轻面部疼痛，同时降低头痛的发作频率与强度。就所使用的注射药物而言，两组的治疗效果并无显著差异。