How Gestational Age Affects the Outcome of an Orthopedic Trauma Does gestational age at the time of orthopaedic trauma affect the outcome of the pregnancy? Dr. Cannada: The majority of trauma, although I did have one-quarter of trauma patients under 23 weeks the difference is before 20 weeks the fetus is inside the pelvis. At 20 weeks the fetus is out of the pelvis. So that’s when you start to see, that’s when women start to show that they are pregnant. So there could be a difference we could, you know, we study trauma, our patients, we didn’t find a significant difference with gestational age and outcome.