“…To cover episode costs related to readmissions, profit margins would have to exceed 4.3% for primary THA, 8.3% for revision THA, and nearly 12% for revision TKA. Similarly, Clair et al [45] reported that medical-and procedural-related readmissions cost, on average, $11,682 and $27,979, respectively. Kurtz et al [46] also identified readmission as a primary cost driver and concluded that nearly half of the total annual economic burden in the USA for readmissions following TJA was for a medical reason and unrelated to the joint replacement procedure.…”