MRIを用いたリウマチ患者におけるパンヌスと下顎頭の骨髄信号異常との関係

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  • The Relationship Between Pannus and Abnormal Bone Marrow Signal in the Mandibular Condyle with Rheumatoid Patients Using MRI

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Background and purpose: Rheumatoid arthritis （RA） is mainly characterized by inflammation of the synovial membrane, which leads to long-term joint damage, resulting in chronic pain, loss of function, and disability. The radiographic abnormalities of the bone, joints, and soft tissue in RA have been described. However, few studies have used MRI to evaluate the relationship between pannus and abnormal bone marrow signal in the mandibular condyle with RA patients. The purpose of this study was to evaluate the relationship between pannus and abnormal bone marrow signal in the mandibular condyle with RA patients using MRI.<br>Materials and methods: Twenty-seven patients with RA and temporomandibular joints （TMJ） pain who underwent MRI examination of the TMJs at our hospital from August 2006 to March 2019 were included in this study. The patients all had rheumatic symptoms in one or more joints and had been diagnosed with RA according to the diagnostic criteria of the American College of Rheumatology （ACR）. The following characteristics of the TMJ were evaluated on MR images: abnormal bone marrow signal in the mandibular condyle and synovial proliferation （pannus）. The between-group differences in these parameters were analyzed using a statistical software package （SPSS version 21.0Ⓡ; IBM Japan Inc., Tokyo, Japan）. P-values less than 0.05 were considered to indicate statistical significance. <br>Results: The results showed that a significant difference in the relationship between pannus and abnormal bone marrow signal in the mandibular condyle with rheumatoid patients.<br>Conclusions: This study suggested that the relationship between pannus and abnormal bone marrow signal is clinically indicated in RA, and that pannus affects the mandibular condyle and causes abnormal bone marrow signal in the mandibular condyle.

収録刊行物

  • 歯科放射線

    歯科放射線 59 (2), 90-93, 2020

    特定非営利活動法人 日本歯科放射線学会

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