The ligaments holding the hip joint head (ball) in place are extremely heavy and strong. Extreme force that is required to dislocate the hip to begin with. All anterior dislocations involve significant tears of the ligaments. And most all of the posterior dislocations suffer the same. Also there is commonly associated cartilage damage. Besides, it is the later post-traumatic problems (not known for weeks or months) that end up being the ultimately debilitating factors. This injury is a much greater career concern than is being described in the "report."