关节内窥镜辅助肋骨-软骨移植重建下颌髁突的临床应用

The clinical application of arthroscope-assisted reconstruction of the mandibular condyle with costochondral graft

目的探讨经耳前切口关节内窥镜辅助肋骨-软骨移植重建髁突的可行性。方法对33例(49侧)颞下颌关节疾患,经耳前切口行髁突切除等病灶处理后充分分离下颌支表面骨膜,制备植骨床,行颌间固定;常规切取肋骨-软骨并修整形态;经颊部3～4mm小切口穿入颊部穿通器,在内窥镜监视下,利用小型接骨板将肋骨-软骨置于下颌支外侧,完成坚固内固定。结果33例患者在关节内窥镜辅助下均顺利地完成了髁突的重建,术中视野清晰,固定稳固,无严重出血、螺钉松脱及颅脑损伤等并发症;术后无面瘫。影像学检查证实肋骨-软骨移植物与下颌支、关节窝保持良好的位置关系。结论经耳前切口关节内窥镜辅助肋骨-软骨移植重建髁突具有手术创伤小、用时短、切口小、术后无明显瘢痕和并发症少等优点。

Objective This is a preliminary study of the endoscopic technique on open surgery. The purpose of this study is to introduce the use of endoscopic technique for the reconstruction of the condyle with costochondral graft through a preauricular incision. Methods 33 patients of temporomandibular joint diseases （n=49） underwent reconstruction of mandibular condyle with costochondral graft. After preparation of the recipient site through a preauricular incision, maxillo-mandibular fixation, and preparation of the costochondral graft, the graft was fixed to the lateral side of the mandible ramus under the supervision of arthroscope. Results All the patients had successful reconstruction of the condyle with costochondral graft without any severe bleeding or craniocerebral injury. Conclusion This case series demonstrates the feasibility of endoscopic technique for the reconstruction of the condyle through a preauricular incision. It has the advantage of high efficiency, minimal postoperative morbidity, great patient comfort, and little appearance impairment. The endoscopic technique has a promising future.