Why the recommendation to rear face until a minimum of age two? Previously, the only data with hard numbers comparing injury when rear versus forward facing were centered around that age group. However, age two is truly a bare minimum. According to the previously noted study, at age three there is still only a 50% probability that the C3 vertebra has finished ossification. The older a child gets, the more time their spinal column has to strengthen and the reality is the longer, the better. Most car seats on the market today will easily rear face even above average height and weight kids until 3-4 years of age. Without a CT scan, there is no way to know what stage of development your child’s spinal column is in, so the safest option is to rear face to the maximum weight or height of a convertible car seat. As time goes on and more older children are rear facing, there will be more scientific data to compare the benefits of a rear facing car seat for preventing spinal injury.
Rear facing is not a choice to be made based on parenting style or opinion; it’s one based on scientific fact. The more we know about physics and physiology, the better we’re able to protect our kids from severe injury as a result of a crash.
References
Bull, M. J., & Durbin, D. R. (2008). Rear-Facing Car Safety Seats: Getting The Message Right. Pediatrics, 121 (3), 619-620. DOI:10.1542/peds.2007-3637.
McCall, T., Fassett, D., & Brockmeyer, D. (2006). Pediatric Cervical Spine Trauma in Children: A Review. Neurosurgical Focus, 20(2), 1-8.
McMurry, T. L., Arbogast, K. B., Sherwood, C. P., Vaca, F., Bull, M., Crandall, J. R., & Kent, R. W. (2017). Rear-facing versus forward-facing child restraints: an updated assessment. Injury prevention, injuryprev-2017.
Yoganandan, N., Pintar, F. A., Lew, S. M., Rao, R. D., & Rangarajan, N. (2011). Quantitative Analyses of Pediatric Cervical Spine Ossification Patterns Using Computed Tomography. Annals of Advances in Automotive Medicine / Annual Scientific Conference, 55, 159–168.
Turbell, Thomas. Rear Facing: The Way Forward.Retrieved from www.rearfacing.co.uk/expertquotes.php