That's destructive and stupid.
I did not personally do that. I am unable to do the splits, front or side. I lack the flexibility in my hips and thighs. However, I know two other martial artists who did achieve full splits by ripping out their groins. It damages the muscles, bones, connective tissues, and structure of the knees and hip joints. It is an uneccessary action driven by hubris and ignorance.
You may notice I don't have much patience for this practice. It is one of the primary reasons many martial artists require major hip and leg surgeries in middle age.
But, if you want to do so, it will help you achieve the splits.
-Rob