Comparison of Various Functionally Graded Femoral Prostheses by Finite Element Analysis

Table 5

Summary of von Mises stress on the femoral stem.

		Lateral				Medial
		0.0	0.1	0.5	1.0	0.0	0.1	0.5	1.0
Cemented
Normal waking	0.0	48.9	39.9	18.6	9.6	53.2	43.7	21.9	12.6
	0.1	46.7	38.7	18.2	9.5	49.4	43.5	22.0	12.5
	0.5	42.6	35.0	16.6	9.3	46.5	39.9	21.0	12.3
	1.0	39.1	33.5	15.8	9.2	43.6	37.4	20.0	12.1
Stair climbing	0.0	51.0	42.8	21.5	12.4	76.7	36.5	29.9	16.4
	0.1	48.2	41.6	21.6	12.3	75.4	35.1	16.3	16.0
	0.5	45.3	39.1	20.6	11.9	69.7	32.1	56.9	13.7
	1.0	42.1	38.2	19.5	11.6	62.4	33.7	15.6	13.7
Noncemented
Normal waking	0.0	47.0	38.4	18.2	20.6	61.1	51.6	27.5	17.6
	0.1	45.9	37.7	18.3	17.5	58.6	50.4	27.1	17.9
	0.5	42.2	35.1	17.3	16.0	55.3	47.9	26.0	17.1
	1.0	38.6	32.1	16.2	16.1	52.3	45.1	24.9	16.8
Stair climbing	0.0	44.2	36.1	17.0	14.8	60.6	51.1	27.1	17.0
	0.1	43.8	35.3	17.8	14.7	58.5	50.3	26.8	18.5
	0.5	39.9	32.7	16.0	14.8	54.6	47.6	25.7	16.3
	1.0	36.4	29.8	15.2	14.8	51.6	44.6	24.5	16.1

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