(March 18, 2016, 11:26 AM EDT) -- PHILADELPHIA — A biomechanics expert’s testimony that the forces in a woman’s fall could not have caused a disc herniation in her neck and back did not prejudice a lawsuit filed by the woman and her husband, the Third Circuit U.S. Court of Appeals held March 15, noting that a jury watched a video of the fall, directly showing them the forces at play (Marie Arnez and Alex Arnez v. The TJX Companies, Inc. and Marmaxx Operating Corp., No. 14-4828, 3rd Cir.; 2016 U.S. App. LEXIS 4711)....