Retro-odontoid pseudotumor, or mass-like retro-odontoid soft tissue thickening, is an
uncommon but important imaging finding that may be associated with rheumatoid arthritis …

Cervical myelopathy occurs in approximately 2.5% of patients suffering from rheumatoid
arthritis (RA) and is associated with notable morbidity and mortality. However, the surgical …

Background and Objectives: To date, imaging characterization of non-rheumatic retro-
odontoid pseudotumors (NRROPs) has been lacking; therefore, NRROPs have been …

Objective Although a retro-odontoid pseudotumor associated with rheumatoid arthritis is a
well-known clinical entity, little is known about retro-odontoid pseudotumors not associated …

Background Rheumatoid arthritis (RA) is an autoimmune disease that often occurs in the
atlantoaxial segment of the cervical spine and results in instability that can cause severe …

(1) Background: Most of the currently used radiological criteria for craniovertebral junction
(CVJ) were developed prior to the popularity of magnetic resonance images (MRIs). This …

Increased range of motion (ROM) at O-C2 after cervical laminoplasty is thought to be a
compensatory change due to loss of cervical ROM after surgery. Retro-odontoid …

Objective Hemodialysis has been reported to be associated with retro-odontoid
pseudotumor (ROP), but its clinical characteristics have not been well described. The …

Objective To investigate whether retro-odontoid soft-tissue thickness (ROSTT) is associated
with cervical degeneration, cervical spine mobility, and sagittal balance of cervical spine …

SUMMARY INTRODUCTION Retro-odontoid pseudotumor (ROP) is a rare disease that
affects the atlantoaxial joint and, in general, is associated with local biomechanical …