Multiple cervical cord compressions in psoriatic arthritis

Coexistent atlantoaxial subluxation (AAS) and subaxial spondylitic changes led to multiple cervical cord compressions in a psoriatic arthritis (PA) patient. Magnetic resonance imaging and myelography were unable to define exactly which cervical lesion was responsible for neurological symptoms. After surgical intervention for the worsening of bulbar symptoms, clinical course of neurological complaints suggested that neurological involvement was due only to anterior/vertical AAS.