Ok, so is her RH the main problem? And the first video, right at about 47 seconds....is that what your mainly concerned with? I believe, if it is locking stifles, there is a very simple and easy procedure that will fix it. I know the procedure, just can't remember if it is for locking stifles. You need to send these videos (esp the first one) to a few vets. I HIGHLY recommend Oregon State University. Dr. Mckenzie is AMAZING!!! And so incredibly helpful. You should try calling vets from around your state and asking their opinion and if they wouldn't mind looking at the vids for you.