Oda T, Panjabi M M, Crisco J J, Bueff H U, Grob D, Dvorak J
Department of Orthopaedic Surgery, Osaka University Medical School, Osaka, Japan.
Clin Biomech (Bristol). 1992 Nov;7(4):201-7. doi: 10.1016/S0268-0033(92)90002-L.
The purpose of this in vitro experimental study was to determine the role of the tectorial membrane in providing stability to the upper cervical spine. Five fresh human cadaveric specimens from the occiput to C3 were studied with a flexibility protocol: we applied the physiological moments of flexion, extension, right/left axial torques, and right/left lateral bendings (up to 1.5 N m), and recorded the ensuing three-dimensional intervertebral motions. Tests were performed in the intact state and then after transection of the tectorial membrane. This injury resulted in significant increases in flexion (6.7°, 28.4%) and axial rotation (5.9°, 7.8%) of C0C1C2 complex. Flexion increased at both C0C1 and C0C2 joints, while axial rotation increased mainly at C0C1 joint. There were minimal changes in lateral bending (2.3°, 8.0%) and no changes in extension (0.7°, 3.5%).
本体外实验研究的目的是确定覆膜在上颈椎稳定性中的作用。采用柔韧性实验方案对5个从枕骨到C3的新鲜人体尸体标本进行研究：我们施加了屈伸、左右轴向扭矩以及左右侧弯（高达1.5 N·m）的生理力矩，并记录随后的三维椎间运动。测试在完整状态下进行，然后在横断覆膜后进行。这种损伤导致C0C1C2复合体的前屈（6.7°，28.4%）和轴向旋转（5.9°，7.8%）显著增加。C0C1和C0C2关节的前屈均增加，而轴向旋转主要在C0C1关节增加。侧弯变化极小（2.3°，8.0%），伸展无变化（0.7°，3.5%）。
