Research Article
The Influence of Geometry of Implants for Direct Skeletal Attachment of Limb Prosthesis on Rehabilitation Program and Stress-Shielding Intensity
Table 4
Summary of results obtained for implants’ diameter of 20 mm.
(a) |
| | Diameter [mm] | | Implant type | Length [mm] | | | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| | Φ 20 | Implant sliding under a force of 1000 N | Press-fit | 535.48 | 480.14 | 409.95 | 358.93 | 287.23 | 83.15 | 79.87 | 68.37 | 68.24 | 68.27 | 68.28 | 68.26 | | Threaded | 13.55 | 13.16 | 8.91 | 8.19 | 8.20 | 8.07 | 9.35 | 7.83 | 7.87 | 8.04 | 7.59 | 7.62 | | LPOFS | 44.01 | 43.40 | 42.80 | 40.31 | 40.82 | 40.49 | 38.42 | 39.29 | 38.32 | 38.45 | 37.69 | 36.43 |
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Italic: over 100 µm; bold: 50 µm to 100 µm; underline: 25 µm to 50 µm; normal-regular: to 25 µm.
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(b) |
| | Diameter [mm] | Bone mass change after 60 months | Implant type | Length [mm] | | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| | Φ 20 | G1 | Press-fit | -12.84 | -12.86 | -12.86 | -12.86 | -12.86 | -12.86 | -12.87 | -12.87 | -12.87 | -12.87 | -12.87 | -12.87 | | Threaded | -21.15 | -21.17 | -21.17 | -21.17 | -21.18 | -21.19 | -21.19 | -21.19 | -21.18 | -21.18 | -21.18 | -21.17 | | LPOFS | -3.83 | -3.72 | -3.73 | -3.75 | -3.76 | -3.78 | -3.78 | -3.78 | -3.78 | -3.79 | -3.79 | -3.78 | | G2 | Press-fit | -9.44 | -11.07 | -11.60 | -12.13 | -12.24 | -12.35 | -12.38 | -12.42 | -12.43 | -12.45 | -12.46 | -12.47 | | Threaded | -3.28 | -4.60 | -5.07 | -5.55 | -5.67 | -5.79 | -5.81 | -5.84 | -5.86 | -5.88 | -5.87 | -5.86 | | LPOFS | -0.48 | -1.82 | -2.37 | -2.92 | -3.13 | -3.34 | -3.41 | -3.48 | -3.55 | -3.63 | -3.65 | -3.68 | | G3 | Press-fit | 9.02 | 7.41 | 4.63 | 1.85 | -1.35 | -4.54 | -7.24 | -9.94 | -11.23 | -12.52 | -13.05 | -13.58 | | Threaded | 12.17 | 10.80 | 8.34 | 5.89 | 3.05 | 0.21 | -1.57 | -3.36 | -5.14 | -6.92 | -7.03 | -7.14 | | LPOFS | 6.21 | 5.64 | 4.45 | 3.26 | 1.58 | -0.10 | -0.98 | -1.87 | -2.75 | -3.64 | -4.59 | -5.54 | | G4 | Press-fit | 6.75 | 6.76 | 6.80 | 6.85 | 6.95 | 7.05 | 6.36 | 5.67 | 2.93 | 0.19 | -3.49 | -7.17 | | Threaded | 9.89 | 9.90 | 9.93 | 9.96 | 10.02 | 10.08 | 8.60 | 7.13 | 5.66 | 4.18 | 3.38 | 2.58 | | LPOFS | 7.02 | 6.76 | 6.77 | 6.78 | 6.81 | 6.85 | 5.70 | 4.55 | 3.40 | 2.26 | 0.61 | -1.03 | | G5 | Press-fit | -0.58 | -0.57 | -0.58 | -0.58 | -0.58 | -0.57 | -0.56 | -0.55 | -0.55 | -0.55 | -0.65 | -0.75 | | Threaded | 2.05 | 2.05 | 2.05 | 2.04 | 2.04 | 2.04 | 2.04 | 2.04 | 2.05 | 2.05 | 1.86 | 1.67 | | LPOFS | -0.57 | -0.56 | -0.57 | -0.58 | -0.57 | -0.57 | -0.57 | -0.56 | -0.56 | -0.56 | -0.65 | -0.75 | | G6 | Press-fit | -6.20 | -6.18 | -6.08 | -5.99 | -5.80 | -5.61 | -6.03 | -6.45 | -7.70 | -8.94 | -10.42 | -11.91 | | Threaded | -3.56 | -3.56 | -3.51 | -3.45 | -3.37 | -3.29 | -3.94 | -4.58 | -5.23 | -5.87 | -6.75 | -7.63 | | LPOFS | -6.14 | -6.17 | -6.13 | -6.08 | -6.01 | -5.95 | -6.28 | -6.62 | -7.20 | -7.79 | -8.65 | -9.52 | | G7 | Press-fit | 1.87 | 0.33 | -2.23 | -4.80 | -7.86 | -10.93 | -12.86 | -14.78 | -15.09 | -15.40 | -15.52 | -15.63 | | Threaded | 4.43 | 3.27 | 1.13 | -1.01 | -3.25 | -5.49 | -6.56 | -7.62 | -8.69 | -9.75 | -9.88 | -10.02 | | LPOFS | -1.39 | -1.66 | -2.58 | -3.51 | -4.95 | -6.39 | -6.99 | -7.60 | -8.20 | -8.81 | -8.82 | -8.83 | | G8 | Press-fit | -13.73 | -14.85 | -15.06 | -15.27 | -15.28 | -15.29 | -15.28 | -15.27 | -15.26 | -15.26 | -15.26 | -15.26 | | Threaded | -7.41 | -8.38 | -8.58 | -8.77 | -8.78 | -8.79 | -8.79 | -8.79 | -8.79 | -8.79 | -8.78 | -8.77 | | LPOFS | -4.68 | -5.74 | -6.15 | -6.56 | -6.59 | -6.62 | -6.57 | -6.53 | -6.49 | -6.45 | -6.43 | -6.41 | | G9 | Press-fit | -16.27 | -16.24 | -16.24 | -16.24 | -16.25 | -16.25 | -16.26 | -16.27 | -16.27 | -16.27 | -16.26 | -16.26 | | Threaded | -22.97 | -22.99 | -22.97 | -22.96 | -22.95 | -22.94 | -22.95 | -22.95 | -22.96 | -22.96 | -22.97 | -22.98 | | LPOFS | -7.79 | -7.91 | -7.90 | -7.90 | -7.88 | -7.87 | -7.87 | -7.86 | -7.86 | -7.86 | -7.86 | -7.87 |
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Italic: over -15%; bold: -10% to -15%; bold-italic: -5% to -10%; underline: 0% to -5%; normal-regular: bone mass increase.
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