Table 2.

Average patient charges and hospital direct costs

Charges and costs	MIS TKA	Traditional TKA	p Value
Total patient charges*	$13,505	$14,552	0.009
Total direct hospital costs	$6156	$6410	0.091
Operating room direct costs	$1346	$1117	< 0.001
Acute care direct costs	$1472	$1700	0.007
Pharmacy direct costs	$308	$414	< 0.001
Physical therapy direct costs	$444	$515	0.011

* Minus implant charges, as defined in Patients and Methods.