Risk factors for developing avascular necrosis include: Trauma. Injuries, such as hip dislocation or fracture, can damage nearby blood vessels and reduce blood flow to bones. Steroid use. High-dose use of corticosteroids, such as prednisone, is the most common cause of avascular necrosis that isn't related to trauma.
Blue Panther Jr. Blue Panther Jr. is the ring name of a Mexican luchador enmascarado, or masked professional wrestler, formerly known as Black Panther. He is working for the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL) portraying a tecnico (Good guy) wrestling character.
The Black Panther is seen to be one of the most intelligent and ferocious predators in America so the image of a Panther is widely used as a logo or as a mascot for sports teams. Some Panthers are actually able to swim, although not those that are Leopards, as Jaguars are known to have a real love of water.