This is not a good thing. However these injuries are pretty straightforward. A second opinion would be at your discretion. It is rare she would be able to return to jumping without an incredible rehabilitation.
To keep her occupied a stall ball hung from the ceiling helps and there's a stall toy that you put in the corner and they can spin a thing with their lips. Keep her on a low protein diet. Prepare for a hard lesson in sport horse medicine. This will seem long but with diligence it is possible to regain some use. Her prognosis is highly dependant and your tenacity in nursing.