1 These are synovial joints between the interior articular process of superior vertebrae and the superior articular process of inferior vertebrae. 2  These plane joints are known as zygapophyseal joints (facet joints) . 3  The flat surfaces of the articular facets are covered with hyaline cartilage.
Major depression was more common and severe in patients with vascular dementia than in patients with AD. In another study of 288 outpatients with dementia, a prevalence of 7.4% was found with HAM-D, 8% prevalence with the GDS and 6.3% with DSM-IV criteria (Brodaty and Luscombe, 1996).
Common causes of irreversible dementias: 1  Alzheimer's disease or Senile Dementia of the Alzheimer's type (SDAT) 2  Progressive mental deterioration spanning a long period of time (3-20 years)  Affects 60 percent of those diagnosed with irreversible dementia.