Usage examples for laceration:

• Ribs crushed- two, four, certainly; probable laceration of the right lobe; concussion of the brain, evidently. "By Birth a Lady" – George Manville Fenn

• They tear a fond mother's heart, says mamma, with majestic action, though bearing the laceration of her bosom with much seeming equanimity. "The Virginians" – William Makepeace Thackeray