Singer K P
Department of Anatomy & Human Biology, The University of Western Australia, Australia.
Clin Biomech (Bristol). 1989 Aug;4(3):137-43. doi: 10.1016/0268-0033(89)90016-8.
The superior articular processes and mammillary processes of T11 and T12 and L1 often form a 'mortice-like' enclosure for the inferior articular processes of the vertebra above. From 630 thoracolumbar junction CT investigations, 297 individuals demonstrated one or more mortice joints. The frequency and variety of mortice joints from T10-11 to T12-L1 were classified into three main types, according to segmental level and orientation of their zygapophysial joints. The T11-12 level accounted for 77% of all mortice joints, with 20% at T12-L1 and 3% at T10-11. In 27% of cases a unilateral mortice joint was demonstrated, often in association with marked zygapophysial joint tropism. Radiographic features of 43 cadaveric mortice joints were compared with their histological characteristics.
第11、12胸椎及第1腰椎的上关节突和乳突常为上方椎体的下关节突形成一个“榫眼样”的包绕结构。在630例胸腰段交界区CT检查中，297例个体显示有一个或多个榫眼关节。根据关节突关节的节段水平和方向，T10 - 11至T12 - L1的榫眼关节的频率和种类分为三种主要类型。T11 - 12水平占所有榫眼关节的77%，T12 - L1占20%，T10 - 11占3%。在27%的病例中显示有单侧榫眼关节，常伴有明显的关节突关节斜向性。将43个尸体榫眼关节的影像学特征与其组织学特征进行了比较。
