Abstract
Atlanto-axial rotatory fixation (AARF) is a rare cause of childhood torticollis that
may occur spontaneously or in association with trauma and upper respiratory infections.
We describe the clinical findings, as well as the effectiveness of imaging in the
diagnosis and the treatment of 4 children with AARF, in whom acute fixed non-dystonic
torticollis was the presenting symptom. Onset of torticollis was spontaneous in Case
1, after general anesthesia for cholesteatoma surgery in Case 2, after a trauma in
Case 3, and during hypersomnia in Case 4. Duration of torticollis prior to diagnosis
was 3 months in the first two patients and 20 days in the other two. All the patients
underwent cervical X-rays examinations, which were not contributory to the diagnosis,
followed by CT, which demonstrated C1-C2 rotatory fixation. One patient had a spontaneous
resolution; treatment with Gardner's tongs and soft collar permitted restoration of
the normal alignment in the other 3 patients. AARF must be considered in all the patients
with persistent painful torticollis.
Key words
Atlanto-axial rotatory fixation - torticollis - computed tomography - conservative
treatment
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MD Luisa Chiapparini
Department of Neuroradiology
Istituto Nazionale Neurologico „C. Besta“
Via Celoria 11
20133 Milano
Italy
Email: lchiapparini@istituto-besta.it