had a cur dilocate a hind leg at the elbow...................trip to the vets................strapped up for a month.............stretched the tendons and tore ligaments on the way out.........
After about 3 months the dog was back out and about, but anything too strenous, and she'd pull that leg up.........even when walking.
she was never the same, and never ran properly again
I hope your bitches injury is not too serious