Exploration for reliable radiographic assessment method for hinge-like hypermobility at atlanto-occipital joint

European spine journal: official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society

Takashi Tsuji¹  Ken Ishii²  Kota Watanabe³  Shinjiro Kaneko⁴ 

[1] Fujita Health University Hospital;Keio Spine Research Group (KSRG);Keio University School of Medicine;National Hospital Organization Murayama Medical Center

关键词: Atlanto-occipital (O-C1) instability;    Classification;    Radiographic assessment method;    Dynamic magnetic resonance imaging;    O-C1 angle;   

DOI  :  10.1007/s00586-017-5349-3

学科分类：骨科学

来源: Springer

【 摘 要 】

PurposeHinge-like hyper-mobility is occasionally observed at the atlanto-occipital (O-C1) joint. However, it has not been clear if this kind of hinge-like hyper-mobility at the O-C1 joint should be regarded as “pathologic”, or referred to as “instability”. To solve this issue, we aimed to establish a reliable radiographic assessment method for this specific type of O-C1 instability and figure out the “standard value” for the range of motion (ROM) of the O-C1 joint.

【 授权许可】

CC BY