I'm studying veterinary technology (4 year program). There they breed racing horses. They have 2 vets full time working there and one of them was our supervisor. In the pastern injury, what happened was that the foal injured his leg, probably with a wire or maybe a bite, then an abscess formed there, right above the pastern. The abcess drained into the articulation, creating a big infection there. We did an intraarticular cleaning, drained all the purulent liquid there, put medication and bandaged it again. 8) That was the finished job.