Greiwe RM, et al. - Via a retrospective review of 5,732 patients who were admitted to a single hospital, over the period of 56 months for total joint arthroplasty, the researchers intended to build models that could be utilized to calculate the 30-day and 90-day readmission rates for patients who underwent total joint arthroplasty. Two hundred and thirty-seven and 547 individuals were readmitted within 30 days and 90 days, respectively. An association of age, body mass index, gender, discharge disposition, the occurrence of cardiac dysrhythmias and heart failure, emergency department visits, psychiatric diagnoses, and medication numbers with 30-day admission rates was ascertained. With the elimination of age and psychiatric drug use, and the addition of intravenous drug abuse, narcotic medications, and total joint arthroplasty within 12 months, similar correlations were observed at 90 days. Hence, to foretell the chances of readmission pot-total joint arthroplasty, there were patient variables or risk factors that assisted in such purpose.