Sodhi N, et al. - This study was undertaken to investigate the incidence of total hip arthroplasty (THA), operative times, length of stay, reoperation rates, readmission rates, and complication rates, in the general vs osteonecrosis (ON) THA populations. These cohorts based on ON-specific risk factors were compared. Applying the National surgical quality improvement program database, current procedural terminology code 27130, international classification of disease, ninth edition code 733.42, and a 1:1 propensity score match, researchers distinguished a sum of of 8,344 matched ON and non-ON THA individuals. Utilizing Pearson’s chi-square and Student t-tests, the above variables were correlated between the matched ON and non-ON cohorts as well as for individuals with each risk factor. Between matched ON vs non-ON individuals, this is one of the first research to correlate postoperative THA results, while also taking into consideration specific risk factors between the cohorts.