【摘要】 目的 研究单侧颞下颌关节骨关节炎（temporomandibular joint osteoarthritis, TMJOA）的临床表现与患侧髁突骨质改变类型的相关性，观察对比双侧髁突骨质和位置的变化。方法 收集100例单侧TMJOA患者的临床和CBCT影像学资料。其中男性10例，女性90例；年龄19～80岁，中位年龄为36岁。分析关节区压痛和张口受限与患侧髁突骨质改变类型的相关性；比较双侧髁突骨质改变的程度以及在关节窝中的位置。结果 患侧髁突以骨质破坏和磨平短小为主，对侧髁突以轻度的骨质硬化为主。关节区压痛和张口受限发生率与患侧髁突骨质的整体改变程度无明显相关性（P>0.05），但均与骨质破坏相关（P<0.05），骨质破坏程度越重，关节区压痛和张口受限发生率越高（P<0.05）。双侧髁突多数存在后移位，两者在关节窝中的位置无显著性差异（P>0.05）。结论 在单侧TMJOA中关节区压痛和张口受限与患侧髁突的骨质破坏明显相关。双侧髁突在关节窝中的位置有后移位表现。更多还原

【Abstract】 Objective To study the correlation between clinical manifestations and different types of bone changes of the ipsilateral condyle, and to observe the changes of bone and position of bilateral condyles in unilateral temporomandibular joint osteoarthritis(TMJOA). Methods The clinical and CBCT imaging data of 100 patients diagnosed with unilateral TMJOA were collected. There were 90 females and 10 males among them. The median age was36 years old(range 19-80 years old). The correlation between tenderness and restricted mouth opening and the types of bone changes of the affected condyle was analyzed. The bone changes and position of bilateral condyles in the articular fossa were compared. Results Bone erosion and flattening were the main features of the affected condyles. Mild bone sclerosis was the main features of the contralateral condyles. The incidence of tenderness and restricted mouth opening was not related to the degree of general degeneration of the affected condyle(P>0.05), but was related to bone erosion(P <0.05). When the degree of bone erosion was aggravated, the incidence increased(P <0.05). Most of the bilateral condyles were displaced posteriorly, and there was no significant difference in their positions in the articular fossa(P>0.05). Conclusion Tenderness and restricted mouth opening in unilateral TMJOA were significantly associated with bone erosion of the ipsilateral condyle. Most of the bilateral condyles were displaced posteriorly in the articular fossa.更多还原