Definition of "unshanked"

I have known the appearances I have now described to be all present where the border was paved under the roots with stone pavement, yet there was scarcely a bunch of grapes in the house that had a dozen unshanked berries on it.

1863, William Thomson, A practical treatise on the cultivation of the grape vine, page 47

The unshanked snaffle bit is good for bending and getting a horse used to the feel of a bit.

2010, Nathan Bowers, 4-H Guide to Training Horses, page 111