Dr. Bob Neff, DVM of Fairfield Equine Associates shows us how he performs injections of a steroid into a horse's hock. Hock injections are used to help reduce inflammation in the joint and help horses move with more range of motion. They are intended for horses who are considered high performance horses, either currently or in their past life, and could benefit from such treatment. Consult your vet to see if equine injections is suitable for your horse.