Goel Atul
Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.
Neurospine. 2018 Dec;15(4):323-328. doi: 10.14245/ns.1836236.118. Epub 2018 Dec 19.
The author reviews the various types of cervical fusion that are associated with instability of the craniovertebral junction. Assimilation of the atlas, C2-3 fusion, the Klippel-Feil abnormality, and pancervical fusion are amongst the more common types of bone abnormalities. It is conceptualised that these types of cervical fusion are not related to any kind of embryological dysgenesis or fault, but instead emerge due to longstanding muscle spasms of the neck in response to atlantoaxial instability. Such bone fusions could be secondary protective responses to longstanding atlantoaxial instability.
作者回顾了与颅颈交界区不稳定相关的各种颈椎融合类型。寰椎融合、C2-3融合、Klippel-Feil畸形和全颈椎融合是较为常见的骨异常类型。据推测,这些类型的颈椎融合与任何胚胎发育异常或缺陷无关,而是由于对寰枢椎不稳定的长期颈部肌肉痉挛而出现。这种骨融合可能是对长期寰枢椎不稳定的继发性保护反应。