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KMID : 0361420140380050689
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Journal of Korean Academy of Rehabilitation Medicine
2014 Volume.38 No. 5 p.689 ~ p.693
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Occipital Condyle Fracture With Isolated Unilateral Hypoglossal Nerve Palsy
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Yoon Jin-Won
Lim Oh-Kyung
Park Ki-Deok
Lee Ju-Kang
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Abstract
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Occipital condyle fractures (OCFs) with selective involvement of the hypoglossal canal are rare. OCFs usually occur after major trauma and combine multiple fractures. We describe a 38-year-old man who presented with neck pain and a tongue deviation to the right side after a traffic accident. Severe limitations were detected during active and passive range of neck motion in all directions. A physical examination revealed a normal gag reflex and normal mobility of the palate, larynx, and shoulder girdle. He had normal taste and general sensation in his tongue. However, he presented with a tongue deviation to the right side on protrusion. A videofluoroscopic swallowing study revealed piecemeal deglutition due to decreased tongue mobility but no aspiration of food. Plain X-ray film findings were negative, but a computed tomography study with coronal reconstruction demonstrated a right OCF involving the hypoglossal canal. An electrodiagnostic study revealed evidence of right hypoglossal nerve palsy. We report a rare case of isolated hypoglossal nerve palsy caused by an OCF.
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KEYWORD
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Occipital condyle fracture, Hypoglossal nerve, Multidetector computed tomography, Electrodiagnosis
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