上海交通大学学报(医学版) ›› 2022, Vol. 42 ›› Issue (6): 695-701.doi: 10.3969/j.issn.1674-8115.2022.06.001

• 口腔外科专题 •    

下颌骨髁突骨折的诊治方案:基于上海交通大学医学院附属第九人民医院颞下颌关节中心的经验

何冬梅(), 杨驰()   

  1. 上海交通大学医学院附属第九人民医院口腔外科,上海交通大学口腔医学院,国家口腔医学中心,国家口腔疾病临床医学研究中心,上海市口腔医学重点实验室,上海 200011
  • 收稿日期:2022-03-02 接受日期:2022-05-30 出版日期:2022-06-28 发布日期:2022-08-19
  • 通讯作者: 杨驰 E-mail:lucyhe119@163.com;yangchi63@hotmail.com
  • 作者简介:何冬梅(1972—),女,教授,主任医师,博士;电子信箱:lucyhe119@163.com
  • 基金资助:
    国家自然科学基金(32071313);上海市科学技术委员会科研项目(20Y11903900)

Diagnosis and treatment protocol of mandibular condylar fracture: experience from the TMJ Center of Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine

HE Dongmei(), YANG Chi()   

  1. Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
  • Received:2022-03-02 Accepted:2022-05-30 Online:2022-06-28 Published:2022-08-19
  • Contact: YANG Chi E-mail:lucyhe119@163.com;yangchi63@hotmail.com
  • Supported by:
    National Natural Science Foundation of China(32071313);Science Research Project of Science and Technology Commission of Shanghai Municipality(20Y11903900)

摘要:

下颌骨髁突骨折在临床上常见,治疗不当会引起咬合紊乱、关节强直、生长发育受限等后遗症。该文结合文献回顾,总结了团队的诊治经验,旨在为临床医师提供参考。髁突骨折的影像学诊断特别是CT的冠状位图像重建是骨折分类和治疗的重要依据。按照骨折线的部位分为髁突(囊内)骨折、髁突颈部骨折和髁突下(基底部)骨折3类。其中囊内骨折又分为A、B、C、M 4种类型。髁突骨折的治疗包括非手术治疗和手术治疗。非手术治疗对咬合紊乱的患者可采用颌间弹性牵引的方式;手术治疗的绝对适应证是下颌支残端外脱位出关节窝的骨折,相对适应证是下颌支残端与关节窝接触的骨折、髁突颈部严重移位或脱位和基底部骨折。手术成功的关键点为:正确的手术入路,骨折的解剖复位和稳定的固定,术中对翼外肌附着和髁突表面软骨的保护,关节盘的复位。对于合并髁突骨折的下颌骨骨折进行复位和固定,要注意舌侧裂隙的关闭(以确保下颌骨宽度的恢复)和髁突在关节窝中的位置;当髁突骨折合并面中部骨折时应先复位固定髁突骨折和咬合关系,然后通过咬合复位固定上颌骨骨折。6岁以下的儿童髁突的自我改建能力较强,多用非手术治疗;随着年龄增长髁突的愈合改建能力逐渐减弱,12岁以上青少年的髁突接近成人,手术治疗适应证参考成人髁突骨折。

关键词: 下颌骨髁突, 下颌骨骨折, 诊断, 治疗

Abstract:

Mandibular condylar fracture is common in clinic. Improper treatment will cause sequelae such as malocclusion, ankylosis and limited mandibular development. This paper combines the literature review and the diagnosis and treatment experience of the team to provide reference for clinicians. Imaging diagnosis, especially coronal CT reconstruction, is the basis for classification and treatment of condylar fracture. According to the fracture location, it is divided into condylar (intracapsular) fracture, condylar neck fracture and subcondylar fracture. And intracapsular fracture can be further divided into four types: A, B, C and M. The treatment of condylar fracture includes non-surgical treatment and surgical treatment. For non-surgical treatment, intermaxillary elastic traction is recommended for malocclusion correction. The absolute indication of surgical treatment is the ramus stump dislocated out of the fossa. The relative indications include the stump of the mandibular ramus contacting the articular fossa, severe displacement or dislocation of the condylar neck and subcondylar fracture. The key points of successful operation include adequate exposure, anatomic reduction and stable fixation, protection of lateral pterygoid muscle attachment and articular cartilage, and reposition of the temporomandibular joint disc. For the condylar fracture combined with mandibular fracture, lingual fissure of the mandible should be closed during reduction and fixation for restoring the mandibular width and condylar position in the fossa. When the condylar fracture is combined with midface fracture, the condylar fracture and occlusal relationship should be restored first, and then the maxillary fracture should be fixed according to the lower dentition. The children under 6 years old have the stronge ability of condylar remodeling, so non-surgical treatment is commonly used. The healing and remodeling ability of condyle gradually decreases with age. The condyles of the teenagers over 12 years old are close to those of the adults, so the indications of surgical treatment for condyle fracture refer to the adults.

Key words: mandibular condyle, mandibular fracture, diagnosis, treatment

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