A “biomechanical animation” is a powerful visual format to develop and display in conjunction with a biomechanical expert, even in an admitted liability case. Such animations are relevant when there is not complete agreement on the causation, extent and nature of all injuries.
From the plaintiff perspective, an admission of liability by the defendant is only saying that he or she admits they did something wrong. It does not rule out a claim by the defendant that they believe the plaintiff also did something wrong. Therefore, on this point alone, you may have to deal with showing and explaining issues of comparative fault to a jury.