Can you let us know exactly what was radiographed?  

This dog is very lame on the left front leg. She may have other soreness too, but the LF is the most dramatic one in the video. Look at her head bob and remember: 'down on the sound'.  Dogs will fling their head up to off-weight the sore front limb, but the head will drop when they use the more comfortable (sound) one.  

Has she also had a thorough neurological exam?  What about her neck range of motion?