In my case, the muscle tore from the upside, not from the downside. This had confused many who tried to diagnose the problem.
I am being told that it is too late to attach the muscle. But I wont give up and will meet another doctor on Wednesday who has actually performed a later repair of a completely ruptured hamstring.
I think the reason for the torn muscle is that my physiotherapist made me do an exercise immediately after the operation which I should not have done. The exercise is seated leg curl, and should not be done for the first two months after operation in the case of hamstring graft.
My doctor says I should be able to run with a torn muscle, by strengthening the adjoining muscles. I really hope he is right.
Your case sounds like a rupture. If that is the case, it must be repaired as soon as possible.