When Atlantoaxial instability occurs along with craniocervical instability, also known as occipitocervical instability (ie instability present also between skull and first cervical vertebra or Atlas), then fusion should consist of adding a fixation to [teknon.es]

14315 results treatment professional education Allergy & Immunology Fellowship The Allergy & Immunology Fellowship is an ACGME-Certified Fellowship with a focus on academic careers in allergy and immunology, as physician-scientists or clinician-educators [massgeneral.org]

Inestabilidad atlantoaxoidea Inestabilidad atlantoaxoidea The surgical treatment for Atlantoaxial instability, when it manifests alone without occipitocervical instability, it mainly consists of a posterior fusion of the first cervical vertebra (C1 or [teknon.es]

Etiology was iatrogenic in six cases, and there were four cases of rheumatoid arthritis and one case due to trauma. In all cases, fixation was accomplished with occipitocervical arthrodesis with posterior arch resection. [pesquisa.bvsalud.org]

Etiology congenital os odontoideum Down syndrome (20%) Morquio syndrome spondyloepiphyseal dysplasia osteogenesis imperfecta Marfan disease neurofibromatosis type 1 (NF1) arthritides rheumatoid arthritis psoriatic arthritis reactive arthritis ankylosing [radiopaedia.org]