Table 2. Demographics of Five Subcategories of Outpatient Knee Surgery

The Less Invasive category in this table excludes ACL Allograft (detailed in the next column). All subsequent listings of the Less Invasive category include the ACL allograft subset.

* ASA/PS was not recorded for 7 patients.

† Nursing interventions required for pain for patients routed to PACU.

‡ Nursing interventions in the step-down recovery unit required for pain.

ACL = anterior cruciate ligament; Recon = reconstruction; ASA/PS = American Society of Anesthesiologists physical status classification; FNB = femoral nerve block; HA = hamstring autograft; HTO = high tibial osteotomy; MER = meniscal reconstruction; MUR = multiligament reconstruction; NB = nerve block; PTA = patellar tendon autograft; SDRU = step-down recovery unit; SNB = sciatic nerve block; UHA = unplanned hospital admission.