Table II.

Summary table of the data from human osteoblasts obtained from those patients undergoing primary total knee arthroplasty. The columns show which anatomical region the data pertains to with a p-value obtained from comparisons of these data. Least squares mean values are shown.

Variable	Distal femur	Proximal tibia	p-value*
Percentage reduction of alamarBlue	29.6	32.0	0.228
Cumulative collagen release, mg/ml	8.1	6.2	0.021
ALP expression, % of parent population	44.4	28.8	0.075
Mineralization, absorbance at 570 nm	0.82	0.68	0.512

^*Tukey's honestly significant difference.

ALP, alkaline phosphatase.