Injury causing an ACL tear can also lead to a deep bone bruise. A bone bruise occurs when the ligament tears and the bones shift on one another. While bone bruising is a common characteristic of an ACL tear, it typically requires no treatment. Your body will heal the bruising on its own. An ACL injury can be treated using arthroscopic surgery regardless of bone bruising. Following a thorough rehabilitation program as directed by your physician, patients are typically able to resume activities within 6 months following ACL surgery.