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).
It is common for people to have mixed dementiaâa combination of two or more disorders, at least one of which is dementia. For example, some people have both Alzheimerâs disease and vascular dementia. Other conditions that may cause memory loss or dementia include: 1  medication side effects. 2  chronic alcoholism. 3  tumors or infections in the brain. 4  blood clots in the brain. 5  vitamin B12 deficiency.