Comparison of Various Functionally Graded Femoral Prostheses by Finite Element Analysis

Table 8

Summary of shear stresses at the prosthesis-cement and cement-bone interfaces.

	Fixation	Cemented								Noncemented
		Prosthesis-cement				Cement-bone				Bone-prosthesis
		0	0.1	0.5	1.0	0.0	0.1	0.5	1.0	0	0.1	0.5	1.0
Normal waking		0.0	1.5	1.5	1.6	1.6	1.6	1.7	1.7	1.7	8.3	8.1	7.0	6.4
	0.1	1.5	1.5	1.6	1.6	1.6	1.7	1.7	1.7	7.1	7.1	6.1	5.6
	0.5	1.5	1.5	1.6	1.6	1.7	1.7	1.7	1.7	6.5	5.9	5.1	4.6
	1.0	1.6	1.6	1.6	1.6	1.7	1.6	1.7	1.7	5.4	4.5	4.0	3.7
Stair climbing	0.0	1.7	1.7	1.7	1.7	2.2	2.3	2.3	2.3	10.9	10.9	10.1	9.2
	0.1	1.7	1.7	1.7	1.7	2.3	2.3	2.3	2.3	9.9	9.6	9.0	8.7
	0.5	1.7	1.7	1.7	1.7	2.3	2.2	2.3	2.3	9.5	9.2	8.0	7.0
	1.0	1.7	1.7	1.7	1.7	2.3	2.3	2.3	2.3	7.3	6.8	5.6	3.6

: radial volume fraction gradient exponent.
: longitudinal volume fraction gradient exponent.