颞骨关节后突的形态学研究

Morphological study on retro-articular process of temporal bone

目的:研究颞骨关节后突的形态,提供解剖学资料,为临床参考。方法:观察和测量253例颅骨的颞骨关节后突,并进行分类。结果:颞骨关节后突的出现率为(95.65±1.28)％。依其形态分为结节型、锥体型、乳头型、平顶型和双峰型等五型,其中结节型占(76.86±2.71)％;依其高径分为大、中、小三型,其中中型占(57.02±3.18)％。结论:颞骨关节后突的出现率很高,以结节型为多见,其高径为2～8mm。颞骨关节后突的形态和高径与下颌头后移有关。

Objective:To study the shape of the retro-articular process of temporal bone, providing anatomical and clinical data. Methods:The retro-articular processes of temporal bone were observed,measured and classified on 253 sides of cranial bone. Results:The appearing rate of the retro-articular process of temporal bone was (95.65±1.28)% .They could be classified into 5 types morphologically: tubercular, pyramidal, papillate, fiattish and two-humped. The tubercular type was (76.86±2.71)% . There were larger,middle and small types according to the retro-articular processes,and the middle one accounted for (57.02 ±3.18) %. Couclusion:The retro-articular process of temporal bone is popular and its height is from 2-8 mm. The tubercular processes are more than the others. The shape and height of the retro-articular process of temporal bone are related to the backward dislocation of the mandible head.