Morphological changes of suboccipital muscles in female patients with myofascial temporomandibular disorder
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.
Temporomandibular disordersWomenMuscle bone ultrasoundSuboccipital musclegroup painel