Lagundoye S B, Oluwasanmi J O
Oral Surg Oral Med Oral Pathol. 1975 May;39(5):812-20. doi: 10.1016/0030-4220(75)90043-2.
In the radiologic examination of trismus complicating cancrum oris, abnormalities can be detected in the soft tissues, osseous tissues, and temporomandibular joint. In the soft tissue, scar formation may show as a depression in the normal smooth, convex contour of the lateral aspect of the face. There may be a myositis ossificans in the soft tissue, producing bony bars that lead to extra-articular ankylosis. By far the most important changes are in the temporomandibular joint, where there can be varying degrees of joint narrowing, sclerosis of the articular cortex, flattening of the mandibular condyle and occasionally also of the eminentia articularis, osteophytosis, and intra-articular bony ankylosis. Hypoplasia may involve the entire hemimandible or be restricted to its condyloid process. The latter may lead to compensatory enlongation and hypertrophy of the coronoid process. Bony ankylosis of the coronoid process to the posterior wall of the maxilla was seen in three cases. The pathogenesis of these changes is discussed.
在对口疮并发牙关紧闭症的放射学检查中，可在软组织、骨组织及颞下颌关节中检测到异常。在软组织中，瘢痕形成可能表现为面部侧面正常光滑、凸起轮廓中的凹陷。软组织中可能存在骨化性肌炎，产生导致关节外强直的骨条。迄今为止，最重要的变化发生在颞下颌关节，其中可能存在不同程度的关节间隙变窄、关节皮质硬化、下颌髁突扁平，偶尔关节结节也会扁平、骨质增生以及关节内骨性强直。发育不全可能累及整个半侧下颌骨，或局限于其髁突。后者可能导致冠状突的代偿性延长和肥大。3例患者出现冠状突与上颌骨后壁的骨性强直。本文讨论了这些变化的发病机制。
