Trivedi A, Ezomo OT, Gronbeck C, et al. - This study was undertaken to investigate current annual trends in 30-day outcomes after total knee arthroplasty (TKA) and 2) to develop a preoperative risk stratification model in this racial minority. Between 2011 and 2017, the American College of Surgeons National Surgical Quality Improvement Program was queried for all Black/African American patients who had undergone primary TKA. Researchers evaluated time trends in demographic variables, comorbid conditions, perioperative characteristics, length of stay (LOS), and 30-day readmissions, reoperations, medical complications, surgical complications, and mortality. Researchers conducted multivariate logistic regression analyses to distinguish independent risk factors for development of 30-day adverse events (AEs). A sum of 19,496 black patients was examined. This study's findings reveal a significant improvement in the annual trends of LOS and 30-day outcomes amongst black patients undergoing primary TKA in recent years. It was illustrated that a predictive model for 30-day AEs was developed to assist risk stratification and optimization of modifiable factors, namely anemia, tobacco smoking, bilateral surgery, and operative time.