@entity3473 is a @entity600 of the craniovertebral junction in which the odontoid abnormally prolapses into the foramen magnum. It is also associated with @entity1645 , @entity1644 , and @entity1276 . @entity1 require surgical treatment to prevent progression of @entity16 , but assessment of anterior or posterior decompression can be difficult owing to bone instability and ambiguous compression of neural structures. Here, we describe a case of @entity3473 in a young adult. He presented with @entity16 , including @entity1644 , 3 months after a traffic trauma that might have led to instability of the bony structures. Since it was unclear whether the instability of the bony structures contributed to the clinical deterioration, the @entity1 was first treated using halo-vest fixation. Significant improvements were observed in both @entity16 and magnetic resonance images. These results justified the invasive fixation and the @entity1 was treated further with an occipito-cervical fusion ; good results were achieved in this case. Owing to the invasiveness of the procedure, occipito-cervical fixation should only be adopted following strict indication criteria. Halo-vest fixation was effective in treating the instability of the bony structures and as a trial treatment for permanent fixation.

[Efficacy of halo-vest fixation in the assessment and prediction of the effectiveness of permanent fixation in a XXXX with @entity3473 with ambiguous vertebral instability].

@entity1 :: ('9606', 'Species') :: ['Patients', 'patient'] @entity1644 :: ('MESH:D013595', 'Disease') :: ['syringomyelia'] @entity1276 :: ('MESH:D006849', 'Disease') :: ['hydrocephalus'] @entity1645 :: ('MESH:D001139', 'Disease') :: ['Chiari malformation'] @entity16 :: ('MESH:D009422', 'Disease') :: ['neurological symptoms'] @entity600 :: ('MESH:D000014', 'Disease') :: ['developmental anomaly'] @entity3473 :: ('MESH:D007443', 'Disease') :: ['Basilar invagination', 'basilar invagination']
@entity1 :: (9606,Species) :: ['patient']
