“…Reduction in LOS, increased discharge home, and reduction in perioperative complications resulting in readmission or reoperation are likely the result of improvements in preoperative patient optimization, expansion of multimodal analgesia, and patient education before these elective procedures. Interventions in the preoperative period have been shown to be highly successful in reducing LOS and decreasing overall costs of care [ [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] ]. Other advancements in arthroplasty practice, such as improvements in surgical technique, greater understanding of the hip-spine relationship, or utilization of larger femoral heads and dual-mobility components, may also have contributed to the findings observed in this study.…”