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  • Title: Traumatic C1-2 rotatory subluxation with dens and bilateral articular facet fractures of C2: A case report.
    Author: Chang DG, Park JB, Jang HJ.
    Journal: Medicine (Baltimore); 2018 Mar; 97(13):e0189. PubMed ID: 29595654.
    Abstract:
    RATIONALE: To the best of our knowledge, this is an extremely rare case of traumatic C1-2 rotatory subluxation associated with multiple C2 fractures. PATIENT CONCERNS: We report the case of a 63-year-old man with type 2 traumatic C1-2 rotatory subluxation (Fielding and Hawkins classification) associated with type III dens (Anderson and D'Alonzo classification) and bilateral articular facet fractures of C2. This injury occurred as a result of falling down in a drunken state. The patient complained of neck pain and mild degree of torticollis but did not show any neurologic abnormalities. DIAGNOSES: Plain radiographs of cervical spine showed extensive soft tissue swelling, a fracture fragment, disruption of spinolaminar line at C1-2 level, and bony overlapping of right side lateral joint of C1-2. Two- and three-dimensional reconstructed computed tomography scans clearly demonstrated complicated C1-2 combined injury. The atlantodental interval was normal. INTERVENTION: By skull traction and derotation, closed reduction of C1-2 rotatory subluxation with a type III dens and bilateral articular facet fractures of C2 was successfully achieved. He was managed with halovest fixation for 3 months. OUTCOMES: At the 1-year follow-up visit solid fusion and improvement of clinical symptoms were achieved without C1-2 instability. LESSONS: Despite traumatic C1-2 rotatory subluxation associated with multiple C2 fractures, trial of closed reduction should be considered as the first choice of treatment so as to preserve C1-2 motion.
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