A case of reformed coronoid process and mandibular angle after coronoidectomy and anglectomy for masticatory muscle tendon-aponeurosis hyperplasia
A case of reformed coronoid process and mandibular angle after coronoidectomy and anglectomy for masticatory muscle tendon-aponeurosis hyperplasia
复制标题
DOI：
10.1007/s11282-013-0145-1
复制
发表时间：
2014-01-01
期刊：
影响因子：
2.2
通讯作者：
Morita, Shosuke
中科院分区：
文献类型：
--
作者：
Yoshida, Hiroaki;Oshiro, Nobuyoshi;Morita, Shosuke
咀嚼肌肌腱-腱膜增生症在日本是一种新定义的疾病实体，它是由于肌腱和腱膜增生导致咀嚼肌伸展受限而导致开口受限。最近，我们遇到了一例罕见的双侧冠突和下颌角在冠状突切除和角切除后的重建病例。一名19岁女性，患有渐进性牙关，被诊断为此病。全麻下行双侧冠突冠状窦切开术及角切开术。术后1周，牙关改善。术后6个月，全景成像显示双侧冠突和下颌骨角形成。术后3年，CT和三维重建CT显示冠突和下颌角的改变。然而，最大开口长度没有减少。她继续每天进行下颌髁运动锻炼。全景成像是评价咀嚼肌肌腱-腱膜增生冠状切除和角切除后骨重建的一种非常有用的检查方法。特别是CT和3D-CT显示冠突和下颌角改变。术后开口训练是预防本病复发的重要预后因素。
Masticatory muscle tendon-aponeurosis hyperplasia is a newly defined disease entity in Japan, in which limited mouth opening results from limited masticatory muscle extension caused by hyperplasia of the tendon and aponeurosis. Recently, we encountered a rare case of reformed bilateral coronoid process and mandibular angle after coronoidectomy and anglectomy. A 19-year-old female with gradually progressive trismus had been diagnosed with this disease. Under general anesthesia, she received coronoidotomy of the bilateral coronoid process and anglectomy. At 1 week postoperatively, trismus was improved. At 6 months postoperatively, panoramic imaging showed the initiation of bilateral reformed coronoid process and mandibular angle. At 3 years postoperatively, computed tomography (CT) and three-dimensional reconstructed CT (3D-CT) demonstrated reformed coronoid process and mandibular angle. However, the maximum mouth opening length was not decreased. She continued to perform mandibular condyle movement exercise every day. Panoramic imaging is a very useful examination for evaluating bone reformation after coronoidectomy and anglectomy for masticatory muscle tendon-aponeurosis hyperplasia. In particular, CT and 3D-CT demonstrated reformed coronoid process and mandibular angle. Postoperative mouth-opening training is an important prognostic factor to prevent the recurrence of trismus in this disease.