“…Reoperations may include manipulation under anesthesia (MUA), irrigation and débridement (I&D), arthroscopy, open reduction internal fixation (ORIF), and others. While incidences of individual complications requiring such reoperations have been reported [1,2,4,6,7,9,11,12,14,21,25,29] (Table 1), the comprehensive profile of indications for nonrevision reoperation (NRR) following primary TKA is unreported. Knowledge of the incidence, indication, timing, and predictors of NRR will allow for an efficient use of resources in targeting the most common causes for reoperation, continuing research in preventing these complications, and identifying patients at the greatest risk so preventative measures may be taken.…”