Bernstein JA, Yeroushalmi D, Slover JD, et al. - This study was attempted to ascertain whether it was appropriate for these cases to be included within the same bundle. Researchers obtained data from consecutive patients in a bundled payment program at a single large academic institution. They enrolled all payments for 90 days postoperatively in the episode of care. They obtained readmission rates, demographics, and length of stay for each episode of care. Compared with those undergoing a total hip arthroplasty, the cost of an episode of care for patients within the bundled payment model was found to be significantly higher for patients undergoing total knee arthroplasty. When determining payment plans, this should be taken into consideration for patients in alternative payment plans, along with other aspects of risk that need to be recognized in order to allow for hospitals to be successful under the bundled payment model.