[Progressive paraparesis, complication of acquired pagetic synostosis of the cervical vertebrae. 2 cases].

Two cases of pagetic cervical intervertebral synostosis with spinal cord compression are reported. Computed tomography and magnetic resonance imaging enabled detailed analysis of pagetic bone structure and relationships between the fused spinal segment and spinal cord. Few similar cases have been reported and most authors have advocated conservative therapy with calcitonin and/or diphosphonates, with surgery only in cases unresponsive to pharmacotherapy.