CLICK HERE TO ASK Joint Replacement Clinic about Joint Replacement, or Read some previous answers below. What is the average lenght of stay for a total knee replacement? OUR TOTAL KNEE REPLACEMENTS ARE USUALY PREFORMED ON MONDAYS WITH A PLANNED DISCHARGE TO HOME ON THURSDAY. PHYSICAL THERAPY WILL CONTINUE AT HOME. SOME PATIENTS WHO DO NOT HAVE ADEQUATE SUPPORT AT HOME MAY BENIFIT FROM A BRIEF ADMISSION TO A TRANSITIONAL CARE UNIT OR REHAB CENTER