Length of stay (LOS) after total joint arthroplasty (TJA) impacts the expense to the hospital. Our purpose was to evaluate the impact that day of surgery has on postoperative LOS. 547 patients who had a primary TJA at two tertiary care hospitals were identified retrospectively. TJA patients admitted on day of surgery and who had primary elective surgery were included in our sample. Patients were subdivided into one of four groups: those who had operations on Monday, Tuesday, Thursday, and Friday respectively. Patients who had surgery on Thursday and Friday had significantly longer LOS when compared to Monday and Tuesday. This variation in LOS between the groups may be due to inconsistencies in weekend functionality, less experienced part-time staffing, and inaccessibility of rehabilitation personnel.
Keywords: day of surgery; length of stay; total joint arthroplasty.
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