If neatly cut the following muscles in the legs tensor fasciae latae, adductors longus and brevis, pectineus and the anterior fibers of gluteus medius and minimus. Prevents the person from closing the legs. Manuel Noriega did this to a doctor where his he instructed his soldiers to repeatedly rape the doctor.
His body bore evidence of unimaginable tortures. The thigh muscles had been neatly sliced so he could not close his legs, and then something had been jammed up his rectum, tearing it apart. His testicles were swollen horribly, the result of prolonged garroting, his ribs were broken, and then, while he was still alive, his head had been sawed off with a butcher's knife."
[2]His head was never found.
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