髁突骨小梁结构变化与退行性骨关节炎：锥形束 CT 影像对比研究。
Trabecular structural changes in the mandibular condyle caused by degenerative osteoarthritis: a comparative study by cone-beam computed tomography imaging.
机构信息
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Karadeniz Technical University, Farabi Street No. 64, 61080, Ortahisar/Trabzon, Turkey.
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Karadeniz Technical University, Farabi Street No. 64, Ortahisar/Trabzon, 61080, Turkey.
出版信息
Oral Radiol. 2019 Jan;35(1):51-58. doi: 10.1007/s11282-018-0324-1. Epub 2018 Mar 26.
OBJECTIVES
Temporomandibular osteoarthritis causes pain and loss of function. In advanced cases, it may also result in destruction of joint cartilage surfaces and bone structure.
METHODS
This study was performed to examine the potential changes in the condylar trabecular bone structure in patients with temporomandibular osteoarthritis. Condylar trabecular structures were compared between 35 healthy patients and 35 patients with temporomandibular osteoarthritis by a box-counting method using fractal dimensional analysis on cone-beam computed tomography images.
RESULTS
The average fractal dimensions of patients with temporomandibular osteoarthritis and healthy patients were 1.18 and 1.23, respectively. This difference was statistically significant (p ≤ 0.05).
CONCLUSIONS
Our results add to the existing preliminary knowledge regarding the osteoporotic changes that occur in the trabecular structure under the subchondral bone, which is normally not seen on radiographic images, as well as the destruction and remodeling that occur on the condyle surface, which is visible on radiographic images.
目的
颞下颌关节炎会引起疼痛和功能丧失。在晚期病例中，它还可能导致关节软骨表面和骨结构的破坏。
方法
本研究旨在检查颞下颌关节炎患者髁突小梁骨结构的潜在变化。通过使用分形维数分析，对锥形束 CT 图像进行盒计数法，比较了 35 名健康患者和 35 名颞下颌关节炎患者的髁突小梁结构。
结果
颞下颌关节炎患者和健康患者的平均分形维数分别为 1.18 和 1.23。这种差异具有统计学意义（p≤0.05）。
结论
我们的结果增加了关于在通常在影像学图像上看不到的软骨下骨的小梁结构中发生的骨质疏松性变化，以及在影像学图像上可见的髁突表面发生的破坏和重塑的现有初步知识。
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