BioMed Research International

Research Article

The Influence of Geometry of Implants for Direct Skeletal Attachment of Limb Prosthesis on Rehabilitation Program and Stress-Shielding Intensity

Table 3

Summary of results obtained for implants’ diameter of 19 mm.

(a)


Diameter [mm]		Implant type	Length [mm]
Diameter [mm]		Implant type	75	80	85	90	95	100	105	110	115	120	125	130

Φ 19	Implant sliding under a force of 1000 N	Press-fit	557.38	511.78	478.15	414.31	355.50	327.29	180.78	77.68	77.58	76.88	76.20	76.02
		Threaded	14.81	14.58	9.13	9.06	8.88	8.83	8.80	8.63	8.51	8.30	8.39	8.28
		LPOFS	45.42	45.43	44.45	41.53	40.16	39.39	39.12	38.89	38.79	38.76	38.17	37.79

Italic: over 100 µm; bold: 50 µm to 100 µm; underline: 25 µm to 50 µm; normal-regular: to 25 µm.

(b)


Diameter [mm]	Bone mass change after 60 months	Implant type	Length [mm]
Diameter [mm]	Bone mass change after 60 months	Implant type	75	80	85	90	95	100	105	110	115	120	125	130

Φ 19	G1	Press-fit	-10.57	-10.59	-10.59	-10.60	-10.59	-10.58	-10.58	-10.59	-10.59	-10.60	-10.60	-10.59
		Threaded	-19.74	-19.74	-19.74	-19.74	-19.74	-19.74	-19.74	-19.75	-19.75	-19.75	-19.76	-19.76
		LPOFS	-4.70	-4.72	-4.72	-4.73	-4.74	-4.75	-4.77	-4.79	-4.79	-4.79	-4.79	-4.79
	G2	Press-fit	*-7.51*	*-8.90*	*-9.35*	*-9.79*	*-9.96*	-10.12	-10.19	-10.27	-10.31	-10.35	-10.37	-10.38
		Threaded	-1.57	-2.65	-3.00	-3.35	-3.47	-3.59	-3.67	-3.75	-3.77	-3.78	-3.82	-3.86
		LPOFS	-2.27	-3.28	-3.72	-4.16	-4.33	-4.50	-4.62	-4.74	-4.78	-4.83	-4.87	-4.92
	G3	Press-fit	8.99	7.60	5.60	3.61	1.06	-1.50	-3.91	*-6.33*	*-7.86*	*-9.39*	-10.18	-10.96
		Threaded	12.11	10.97	9.15	7.33	4.77	2.21	0.72	-0.78	-1.74	-2.70	-3.38	-4.07
		LPOFS	5.77	5.19	3.97	2.76	1.27	-0.21	-1.58	-2.95	-3.70	-4.45	*-5.20*	*-5.96*
	G4	Press-fit	6.76	6.76	6.79	6.82	6.86	6.89	6.21	5.52	3.37	1.22	-1.79	-4.80
		Threaded	9.90	9.91	9.93	9.95	9.77	9.58	9.23	8.88	6.97	5.07	4.13	3.19
		LPOFS	6.76	6.76	6.79	6.81	6.79	6.77	5.73	4.68	3.11	1.54	-0.03	-1.60
	G5	Press-fit	-0.57	-0.59	-0.58	-0.58	-0.58	-0.57	-0.56	-0.55	-0.56	-0.57	-0.70	-0.84
		Threaded	2.05	2.05	2.05	2.05	2.03	2.01	2.04	2.07	2.06	2.05	1.94	1.83
		LPOFS	-0.57	-0.57	-0.57	-0.56	-0.56	-0.56	-0.56	-0.56	-0.62	-0.69	-0.75	-0.82
	G6	Press-fit	*-6.20*	*-6.19*	*-6.11*	*-6.02*	*-5.90*	*-5.78*	*-6.13*	*-6.48*	*-7.54*	*-8.59*	*-9.87*	-11.15
		Threaded	-3.55	-3.55	-3.50	-3.46	-3.31	-3.16	-3.57	-3.98	-4.76	*-5.55*	*-6.50*	*-7.45*
		LPOFS	*-6.19*	*-6.17*	*-6.13*	*-6.08*	*-6.02*	*-5.96*	*-6.32*	*-6.67*	*-7.39*	*-8.10*	*-8.82*	*-9.53*
	G7	Press-fit	1.78	0.41	-1.92	-4.25	*-6.89*	*-9.54*	-11.11	-12.68	-13.10	-13.53	-13.67	-13.82
		Threaded	4.33	3.27	1.55	-0.18	-2.33	-4.49	*-5.33*	*-6.16*	*-6.50*	*-6.83*	*-6.93*	*-7.02*
		LPOFS	-1.55	-2.05	-3.23	-4.40	*-5.97*	*-7.53*	*-8.42*	*-9.30*	*-9.43*	*-9.56*	*-9.68*	*-9.81*
	G8	Press-fit	-12.02	-13.07	-13.31	-13.55	-13.55	-13.55	-13.52	-13.50	-13.48	-13.46	-13.45	-13.44
		Threaded	*-5.83*	*-6.64*	*-6.80*	*-6.97*	*-6.93*	*-6.89*	*-6.95*	*-7.00*	*-6.98*	*-6.95*	*-6.95*	*-6.95*
		LPOFS	*-6.66*	*-7.47*	*-7.76*	*-8.04*	*-8.08*	*-8.13*	*-8.07*	*-8.02*	*-7.97*	*-7.91*	*-7.86*	*-7.80*
	G9	Press-fit	-14.20	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19	-14.19
		Threaded	-21.63	-21.60	-21.60	-21.61	-21.63	-21.64	-21.63	-21.62	-21.61	-21.61	-21.63	-21.64
		LPOFS	*-8.88*	*-8.87*	*-8.86*	*-8.86*	*-8.86*	*-8.86*	*-8.87*	*-8.87*	*-8.87*	*-8.86*	*-8.85*	*-8.84*

Italic: over -15%; bold: -10% to -15%; bold-italic: -5% to -10%; underline: 0% to -5%; normal-regular: bone mass increase.