Yesterday we went to the orthopedic doctor to hear the results of the MRI of this:
And, Hurrah, the news was good. Yes, it's a significant injury (we didn't need the doc to tell us that), however, it is not a total tear of anything, and the Hamstrings are still attached where they are meant to be attached. It's a rupture in the middle of the hamstrings, and that shall mend on it's own, given the proper time and care.
What a relief, and Dave is walking a bit better now. Phewwww!