Gender differences in lateral pterygoid muscle in patients with anterior disk displacement.

Autor: Wang S; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Chen Y; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Guo W; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., She D; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Liao Y; Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Xing Z; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Huang N; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Huang H; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China., Cao D; Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.
Jazyk: angličtina
Zdroj: Oral diseases [Oral Dis] 2023 Nov; Vol. 29 (8), pp. 3481-3492. Date of Electronic Publication: 2022 Oct 05.
DOI: 10.1111/odi.14391
Abstrakt: Objective: To use quantitative MRI to assess gender differences in lateral pterygoid muscle (LPM) characteristics in patients with anterior disk displacement (ADD).
Methods: Lateral pterygoid muscle of 51 patients diagnosed with temporomandibular joint disorders (TMD) who underwent T1-weighted Dixon and T1-mapping sequences were retrospectively analyzed. There were 34 female patients (10 with bilateral normal position disk [NP]; 24 with bilateral ADD) and 17 male patients (eight with bilateral NP; nine with bilateral ADD) among them. After controlling for age, differences in fat fraction, T1 value, volume and histogram features related to gender and disk status were tested with 2-way ANCOVA or Quade ANCOVA with Bonferroni correction.
Results: Volume of LPM in NP was significantly smaller than that of ADD (p < 0.001). Fat fraction of LPM in females with NP was significantly higher than males with NP (p < 0.05). Females with ADD showed a significantly higher T1 value (p < 0.05), and higher intramuscular heterogeneity than males with ADD.
Conclusions: Lateral pterygoid muscle in female TMD patients presented more fatty infiltration in the NP stage and might present more fibrosis in the ADD stage compared with males. Together, this leads to more serious intramuscular heterogeneity during the pathogenesis of ADD in females.
(© 2022 Wiley Periodicals LLC.)
Databáze: MEDLINE
Externí odkaz: