Grisel's syndrome is a rare but well-documented clinical entity. It is a nontraumatic, fixed rotary subluxation of C1 on C2 (atlantoaxial). Although first described in 1830, the exact mechanism of Grisel's syndrome remains unclear. We present a postoperative case of Grisel's syndrome and an extensive literature review, and we propose a mechanism for its pathogenesis. In addition, we propose a treatment algorithm for Grisel's syndrome.
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