The vertebral fusion is present from birth. Three major features result from this vertebral fusion: a short neck, the resulting appearance of a low.
In the cervical spine, fusion disease at the adjacent motion segments . between congenital and surgical block vertebrae of pediatric and adult.
cervical vertebral fusion; congenital cervical synostosis; isolated Klippel-Feil syndrome . disease that typically becomes evident during early to mid- adulthood.