This is the fourth AROC impairment specific report for orthopaedic replacements. This report compares YOUR FACILITY's data to ALL AROC FACILITIES data. Each impairment specific report is structured as a series of chapters. Each report will present an overall big picture chapter on the impairment, followed by a chapter looking at FIM item scoring at YOUR FACILITY as compared to ALL AROC FACILITIES data by AN_SNAP class. An outcomes analysis chapter follows with an explanatory data chapter at the end.