Comparison of Various Functionally Graded Femoral Prostheses by Finite Element Analysis

Table 6

Summary of maximum and minimum principal stress on the femur.

			Maximum principal stress				Minimum principal stress
			Lateral				Medial
			0.0	0.1	0.5	1.0	0.0	0.1	0.5	1.0
Cemented	Normal waking		0.0	16.4	16.8	18.0	18.9	23.4	24.5	24.4	24.6
		0.1	16.6	17.0	18.2	19.1	23.4	24.7	25.0	25.2
		0.5	17.2	17.5	18.7	19.5	23.6	25.0	25.2	25.4
		1.0	17.9	18.8	19.3	19.9	23.9	25.0	25.5	25.6
	Stair climbing	0.0	19.5	19.9	21.2	22.1	46.7	46.7	46.5	46.7
		0.1	19.7	20.1	21.3	22.2	46.4	47.0	47.4	47.7
		0.5	20.2	20.6	21.7	22.6	46.7	47.5	47.8	48.0
		1.0	20.8	21.3	22.2	23.0	47.0	67.5	48.1	48.2
Cementless	Normal waking	0.0	10.2	10.3	10.6	10.8	9.8	10.0	10.8	13.6
		0.1	10.4	10.4	10.5	10.6	10.9	13.9	14.5	14.9
		0.5	11.0	10.5	10.5	10.6	11.0	15.5	15.5	15.3
		1.0	10.9	10.6	10.7	10.7	11.4	15.9	15.5	15.4
	Stair climbing	0.0	10.0	10.1	10.6	10.9	25.0	25.0	25.1	25.1
		0.1	10.5	10.6	10.8	11.0	24.1	24.5	24.7	24.7
		0.5	11.5	10.9	11.0	11.0	23.8	24.1	24.4	24.6
		1.0	11.2	10.9	10.9	10.9	23.3	24.0	24.3	24.7