肌痛性颞下颌关节紊乱病女性患者枕下肌群形态学变化

Morphological changes of suboccipital muscles in female patients with myofascial temporomandibular disorder

目的通过肌骨超声成像探讨肌痛性颞下颌关节紊乱病女性患者和健康女性的枕下肌群形态学差异,为临床提供参考。方法招募肌痛性颞下颌关节紊乱病女性患者65例,人口学特征相似的健康女性65例,应用肌骨超声成像对2组参与者的枕后肌群(头后大直肌、头后小直肌、头上斜肌、头下斜肌)的横截面积、周长、宽度、深度及厚度进行评估。对2组的评估结果进行比较。结果肌痛性颞下颌关节紊乱病女性患者表现出双侧头后小直肌横截面积、厚度和周长的显著性降低(P<0.05),宽度和深度与健康女性相似(P>0.05)。肌痛性颞下颌关节紊乱病女性患者双侧头后大直肌的横截面积、厚度和周长均显著低于健康女性(P<0.05),宽度和深度与健康女性相似(P>0.05)。肌痛性颞下颌关节紊乱病女性患者的头上斜肌表现出双侧横截面积、厚度和周长显著减少(P<0.05),宽度和深度与健康女性相似(P>0.05)。结论与健康女性相比,肌痛性颞下颌关节紊乱病女性患者枕下肌肉的横截面积、周长和厚度均减少,枕下肌群呈现萎缩趋势。

Objective To explore the morphological differences of the suboccipital muscle group between female patients with painful temporomandibular joint disorder and healthy women through Ultrasound of the Musculoskeletal System.Methods Sixty-five female patients with painful temporomandibular joint disorder and 65 healthy women with similar demographic characteristics were recruited.Muscle bone ultrasound imaging was used to evaluate the cross-sectional area,depth,width and thickness of the posterior occipital muscle group(Rectus capitis posterior major,Rectus capitis posterior minor,superior oblique,and inferior oblique)of the two groups of participants.Compare the evaluation data between the two groups.Results The results showed that female patients with painful temporomandibular joint disorder showed a significant decrease in the cross-sectional area,thickness,and circumference of the bilateral posterior rectus minor muscle(P<0.05),and the width and depth were similar to those of healthy women(P>0.05).The cross-sectional area,thickness,and circumference of the bilateral posterior rectus major muscles in female patients with painful temporomandibular joint disorders were significantly lower than those in healthy women(P<0.05),and the width and depth were similar to those in healthy women(P>0.05).Female patients with painful temporomandibular joint disorder exhibit a significant reduction in bilateral cross-sectional area,thickness,and circumference of the superior oblique muscle(P<0.05),with a width and depth similar to that of healthy women(P>0.05).Conclusion Compared with healthy women,female with myofascial Temporomandibular disorders had a decrease in the cross-sectional area,perimeter and thickness of the suboccipital muscles,the suboccipital muscles showed a trend of atrophy.