Update on Upper Cervical Injury Classifications: The New AO Upper Cervical Spine Classification System. 2022

Alexander R Vaccaro, and Brian A Karamian, and Hannah A Levy, and Jose A Canseco, and Shanmuganathan Rajasekaran, and Lorin M Benneker, and F Cumhur Oner, and Frank Kandziora, and Klaus J Schnake, and Christopher K Kepler, and Gregory D Schroeder
Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA.

The upper cervical spine accounts for the largest proportion of cervical range of motion afforded by a complex system of bony morphology and ligamentous stability. Its unique anatomy, however, also makes it particularly vulnerable during both low and high energy trauma. Trauma to this area, referred to as upper cervical spine trauma, can disrupt the stability of the upper cervical spine and result in a wide spectrum of injury. Numerous upper cervical injury classification systems have been proposed, each of which have distinct limitations and drawbacks that have prevented their universal adoption. In this article, we provide an overview of previous classifications, with an emphasis on the development of the new AO Spine Upper Cervical Classification System (AO Spine UCCS).

UI MeSH Term Description Entries
D008022 Ligaments Shiny, flexible bands of fibrous tissue connecting together articular extremities of bones. They are pliant, tough, and inextensile. Interosseal Ligament,Interosseous Ligament,Interosseal Ligaments,Interosseous Ligaments,Ligament,Ligament, Interosseal,Ligament, Interosseous
D002574 Cervical Vertebrae The first seven VERTEBRAE of the SPINAL COLUMN, which correspond to the VERTEBRAE of the NECK. Cervical Spine,Cervical Spines,Spine, Cervical,Vertebrae, Cervical
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013122 Spinal Diseases Diseases involving the SPINE. Disease, Spinal,Diseases, Spinal,Spinal Disease
D013124 Spinal Injuries Injuries involving the vertebral column. Injuries, Spinal,Injury, Spinal,Spinal Injury
D016059 Range of Motion, Articular The distance and direction to which a bone joint can be extended. Range of motion is a function of the condition of the joints, muscles, and connective tissues involved. Joint flexibility can be improved through appropriate MUSCLE STRETCHING EXERCISES. Passive Range of Motion,Joint Flexibility,Joint Range of Motion,Range of Motion,Flexibility, Joint

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