MỐI LIÊN QUAN GIỮA KÍCH THƯỚC KHE KHỚP TRÊN CỘNG HƯỞNG TỪ VÀ TRIỆU CHỨNG ĐAU KHỚP THÁI DƯƠNG HÀM Ở BỆNH NHÂN TMD

Abstract

Objective: This study aimed to evaluate the association between joint space dimensions on magnetic resonance imaging (MRI) and temporomandibular joint (TMJ) pain in patients with temporomandibular disorders (TMD). Methods: A cross-sectional study was conducted on 50 Vietnamese patients diagnosed with TMD. Joint space dimensions (anterior, superior, and posterior) were obtained from MRI imaging. Patients were classified into two groups based on the presence or absence of TMJ pain. Independent t-tests and multivariate linear regression were used for statistic analysis. Results: The anterior joint space was significantly narrower in patients with TMJ pain compared to those without pain (p = 0.005). Multivariate analysis confirmed TMJ pain as an independent factor associated with reduced anterior joint space (β = –0.238; p = 0.002). Patients aged ≥ 30 had narrower superior joint spaces (p = 0.009), and age remained an independent factor associated with reduced joint space dimensions after adjusting with other confounding factors. Conclusion: TMJ pain is independently associated with reduced anterior joint space on MRI. These findings support the role of quantitative imaging in assessing TMJ structural changes related to TMD.