PT - JOURNAL ARTICLE AU - Mayo, Benjamin C. AU - Massel, Dustin H. AU - Yacob, Alem AU - Narain, Ankur S. AU - Hijji, Fady Y. AU - Jenkins, Nathaniel W. AU - Parrish, James M. AU - Modi, Krishna D. AU - Long, William W. AU - Hrynewycz, Nadia M. AU - Brundage, Thomas S. AU - Singh, Kern TI - A Review of Vitamin D in Spinal Surgery: Deficiency Screening, Treatment, and Outcomes AID - 10.14444/7059 DP - 2020 Jun 01 TA - International Journal of Spine Surgery PG - 7059 4099 - https://www.ijssurgery.com/content/early/2020/06/17/7059.short 4100 - https://www.ijssurgery.com/content/early/2020/06/17/7059.full AB - In this review, we discuss the demonstrated value of vitamin D in bone maintenance, fracture resistance, spinal health, and spine surgery outcomes. Despite this, the effect of vitamin D levels in spine surgery has not been well described. Through this review of literature, several conclusions were drawn. First, despite the fact that a high number of spine surgery patients are vitamin D deficient, screening is not commonly performed. Second, vitamin D levels will not be achieved in a majority of these patients without supplementation. Last, inadequate vitamin D levels may increase the risk of pseudarthrosis. Given these findings, we suggest that many patients undergoing spinal surgery could be treated with vitamin D supplementation prior to surgery without the need for confirmatory testing for vitamin D deficiency. This is a more cost-effective method than screening all patients. However, future randomized trials and cost-effectiveness analyses are needed to determine the ultimate effects of vitamin D supplementation on clinical morbidity and surgical outcomes.