髁突骨折与颞下颌关节强直

The relationship between temporomandibular joint ankylosis and condylar fractures

外伤是颞下颌关节强直最主要的病因,但髁突骨折与外伤性关节强直的关系一直存在争议。有研究表明,髁突囊内骨折可引起关节软骨损伤、关节盘移位或破损、关节积血,继发关节纤维化以及骨化,最终导致关节强直。本文从临床和实验角度探讨了髁突骨折与颞下颌关节强直的关系。

Trauma is a predominant factor in TMJ ankylosis but the relationship between condylar fracture and traumatic TMJ ankylosis can not be clearly explained, Some studies demonstrate post-traumatic TMJ ankylosis arises from TMJ intra-capsular changes, including damaged cartilage, displaced or disrupted discs, haematoma formation and subsequent fibrosis and calcification in the joint. The relationship between TMJ ankylosis and condylar fracture were discussed from the clinical characteristics and animal studies.