Table 2.

The micro-motion and gap thickness of the cement-bone interface from 11 post-mortem retrieved hip replacements was determined previously in an experimental investigation* [11]. This data was used as input into idealized fluid/structure finite element models to determine maximum fluid velocity, pressure, and shear rate.

	Experimental Data*					Fluid Flow Model Results
Donor	Median Interface Gap Thickness (mm)	Median Inteface Shear Micro- motion (mm)	Median Interface Normal Micro- motion (mm)	Cement Mantle Minor Dimension (mm)	Cement Mantle Major Dimension (mm)	Velocity (mm/s)	Pressure (Pa)	Shear Rate (1/s)
A	0.068	0.0041	0.0011	18.0	18.1	0.71	21.82	32.29
B	0.170	0.0057	0.0010	18.7	18.9	0.27	1.39	5.13
C	0.182	0.0221	0.0110	17.7	17.8	2.61	11.14	44.66
D	0.170	0.0264	0.0076	17.9	21.8	2.57	11.39	46.82
E	0.136	0.0035	0.0014	15.2	19.2	0.48	3.02	10.98
F	0.136	0.0033	0.0021	16.3	22.4	0.75	5.56	16.93
G	0.045	0.0031	0.0009	16.9	17.0	0.82	54.16	56.21
H	0.318	0.1656	0.0410	17.9	18.9	6.45	8.46	61.56
I	0.193	0.0331	0.0161	14.8	20.5	3.93	12.69	63.00
J	0.568	0.6940	0.1478	17.8	20.1	15.70	6.48	79.09
K	0.079	0.0019	0.0007	18.0	20.5	0.45	9.75	17.36