14:49 Sep 23, 2009 

bench knee
Bench knee
conformation defect in which the metacarpus is not centered symmetrically to the carpus.

14:46 Sep 23, 2009 

I found this

Bench Kneed
Horses
Bench kneed horse

Bench knee is a structural fault of the horse's front legs. Bench, or offset, knees are characteristics of a horse with cannon bones set too far to the outside of the knee. This conformational fault increases the possibility for horses to develop splints.

Hope it helps