The asymptomatic and apparently idiopathic ivory vertebra is often a very problematic clinical situation. Previous studies have hypothesized that although several etiologies have been known to be responsible for producing ivory vertebrae, the most likely etiology, particularly for so-called âidiopathicâ ivory vertebrae, is early and asymptomatic Pagetâs disease of bone.
The series that began the franchise, Mighty Morphin Power Rangers (an American adaptation of the 1992 Japanese Super Sentai Series, KyÅryÅ« Sentai Zyuranger), began broadcasting as part of the Fox Kids block of programing that aired on the FOX network. It lasted for three seasons (from 1993 to 1996).
Saturday afternoon (at 1 ET/PT) sees the debut of new episodes of Power Rangers Megaforce that will air on Nickelodeon through the end of the year. They'll lead to an all-new Super Megaforce series premiering in 2014.