An Edmonton woman who was seriously injured when a bull leaped into the crowd at the Canadian Finals Rodeo two years ago has filed a $450,000 lawsuit against the organizers.

Carol Edith MacKechnie filed a statement of claim in Edmonton Court of Queen's Bench last week against Edmonton Northlands and the Canadian Professional Rodeo Association.

On Nov. 12, 2010, MacKechnie and her husband were watching the bull-riding event from the front row of the stands at Rexall Place when a bull jumped over the fence. MacKechnie was crushed when the animal landed on her.

According to the lawsuit, she suffered a number of injuries including fractures to her pelvis, cheekbone and orbital bones, extensive internal injuries, extensive contusions and abrasions, acceleration of pre-existing early on-set Alzheimer's and post-traumatic stress disorder.

The lawsuit alleges the defendants failed to install a fence that was high enough to protect spectators; failed to warn her of any potential hazard or danger; and failed to harness or corral the bull and  ensure there was enough staff to do so before the animal leaped the fence.

The statement of claim further alleges that organizers should have known that playing loud music and using sound effects would have aggravated the bull. It also claims that this was the first time the animal had ever competed in a major indoor rodeo.

In addition to the damages sought by MacKechnie, the Government of Alberta is suing to recover $50,000 in health care costs.

The allegations in the lawsuit have not been proven in court.