02/09/2021
Breakover!!
What is breakover when talked about as a trimming landmark?
Breakover is trimmed at the forward most part of the hoof at the toe. It is the very last part of the hoof to be touching the ground as the horse breaks over and lifts the leg into the swing phase of the stride. It is usually trimmed as a bevel or roll into the hoof wall, but occasionally is trimmed back farther into the golden line or even the sole if the sole is very stretched forward.
How do you know where to set breakover?
There are a couple of ways. This picture shows the angle of new growth at the coronary band and if we were to follow it all the way down, breakover should be where the hoof wall would be if it were well connected. Follow the green line down and it shows the beginning of where I trimmed breakover in line with that upper growth.
Another way I determine breakover is by reading the soleβs concavity. Solar concavity mimics the coffin bone concavity, so following the concavity out until it plateaus is sometimes also an indicator of where breakover should be, but there are a few exceptions to this method. For instance a foundered horse will have very little to no concavity, and a horse with retained sole may not show the concavity properly.
In my opinion setting a proper breakover is probably the single most important part of the trim, and one of the main aspects of trimming that I find a lot of professionals get wrong.
This could be discussed in a video if there is interest, let me know!