Research Article
The Influence of Geometry of Implants for Direct Skeletal Attachment of Limb Prosthesis on Rehabilitation Program and Stress-Shielding Intensity
Table 5
Summary of results obtained for implants’ diameter of 21 mm.
(a) |
| | Diameter [mm] | | Implant type | Length [mm] | | | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| | Φ 21 | Implant sliding under a force of 1000 N | Press-fit | 448.33 | 438.29 | 423.89 | 399.38 | 346.58 | 78.66 | 78.66 | 72.96 | 70.74 | 69.60 | 69.55 | 69.03 | | Threaded | 16.00 | 12.49 | 12.69 | 12.87 | 12.96 | 7.92 | 8.25 | 8.18 | 8.35 | 8.24 | 8.10 | 7.98 | | LPOFS | 42.98 | 41.22 | 41.22 | 41.44 | 40.51 | 40.49 | 40.49 | 39.85 | 39.98 | 40.06 | 39.55 | 39.07 |
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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 21 | G1 | Press-fit | -15.05 | -15.05 | -15.05 | -15.05 | -15.06 | -15.07 | -15.07 | -15.07 | -15.06 | -15.06 | -15.06 | -15.07 | | Threaded | -22.55 | -22.54 | -22.53 | -22.51 | -22.53 | -22.54 | -22.54 | -22.53 | -22.53 | -22.53 | -22.53 | -22.54 | | LPOFS | -2.46 | -2.50 | -2.52 | -2.54 | -2.56 | -2.58 | -2.58 | -2.59 | -2.59 | -2.59 | -2.59 | -2.59 | | G2 | Press-fit | -11.37 | -13.12 | -13.65 | -14.19 | -14.29 | -14.39 | -14.41 | -14.43 | -14.44 | -14.45 | -14.45 | -14.45 | | Threaded | -5.24 | -6.69 | -7.21 | -7.73 | -7.84 | -7.95 | -7.97 | -7.99 | -8.01 | -8.02 | -8.02 | -8.01 | | LPOFS | 0.87 | -0.22 | -0.80 | -1.39 | -1.66 | -1.92 | -2.01 | -2.09 | -2.14 | -2.18 | -2.22 | -2.27 | | G3 | Press-fit | 9.05 | 7.27 | 3.96 | 0.66 | -3.51 | -7.67 | -10.67 | -13.68 | -14.51 | -15.34 | -15.53 | -15.72 | | Threaded | 12.21 | 10.72 | 7.99 | 5.27 | 1.24 | -2.79 | -5.51 | -8.23 | -8.74 | -9.25 | -9.45 | -9.65 | | LPOFS | 5.98 | 6.01 | 5.14 | 4.27 | 2.64 | 1.01 | -0.08 | -1.16 | -2.01 | -2.86 | -3.71 | -4.56 | | G4 | Press-fit | 6.74 | 6.76 | 6.80 | 6.85 | 6.98 | 7.11 | 6.10 | 5.08 | 1.72 | -1.64 | -6.03 | -10.43 | | Threaded | 9.89 | 9.91 | 9.95 | 9.99 | 10.08 | 10.17 | 8.05 | 5.93 | 2.84 | -0.25 | -3.07 | -5.88 | | LPOFS | 6.76 | 6.76 | 6.77 | 6.78 | 6.79 | 6.79 | 6.45 | 6.11 | 4.73 | 3.35 | 1.97 | 0.59 | | G5 | Press-fit | -0.59 | -0.57 | -0.58 | -0.58 | -0.58 | -0.57 | -0.56 | -0.55 | -0.53 | -0.52 | -0.58 | -0.63 | | Threaded | 2.04 | 2.03 | 2.04 | 2.04 | 2.04 | 2.05 | 2.06 | 2.07 | 2.09 | 2.10 | 2.02 | 1.93 | | LPOFS | -0.57 | -0.57 | -0.57 | -0.56 | -0.57 | -0.57 | -0.56 | -0.54 | -0.56 | -0.58 | -0.61 | -0.63 | | G6 | Press-fit | -6.21 | -6.17 | -6.08 | -5.99 | -5.77 | -5.55 | -6.12 | -6.70 | -8.13 | -9.56 | -11.21 | -12.86 | | Threaded | -3.57 | -3.54 | -3.48 | -3.42 | -3.26 | -3.09 | -4.08 | -5.08 | -6.38 | -7.67 | -8.73 | -9.80 | | LPOFS | -6.19 | -6.16 | -6.14 | -6.12 | -6.07 | -6.02 | -6.13 | -6.24 | -6.88 | -7.53 | -8.17 | -8.81 | | G7 | Press-fit | 1.92 | 0.28 | -2.52 | -5.32 | -8.87 | -12.42 | -14.45 | -16.48 | -16.74 | -17.00 | -17.10 | -17.19 | | Threaded | 4.48 | 3.22 | 0.88 | -1.47 | -4.60 | -7.73 | -9.36 | -10.99 | -11.16 | -11.34 | -11.41 | -11.48 | | LPOFS | -1.28 | -1.27 | -1.89 | -2.52 | -3.71 | -4.91 | -5.85 | -6.80 | -6.97 | -7.15 | -7.33 | -7.50 | | G8 | Press-fit | -15.44 | -16.61 | -16.80 | -16.99 | -17.00 | -17.00 | -17.00 | -17.00 | -17.00 | -17.00 | -17.00 | -17.00 | | Threaded | -9.12 | -10.19 | -10.39 | -10.58 | -10.58 | -10.58 | -10.58 | -10.58 | -10.58 | -10.59 | -10.59 | -10.60 | | LPOFS | -3.34 | -4.30 | -4.61 | -4.93 | -4.99 | -5.05 | -4.97 | -4.89 | -4.85 | -4.81 | -4.77 | -4.73 | | G9 | Press-fit | -18.24 | -18.25 | -18.26 | -18.26 | -18.25 | -18.25 | -18.25 | -18.25 | -18.25 | -18.25 | -18.25 | -18.25 | | Threaded | -24.23 | -24.20 | -24.21 | -24.23 | -24.22 | -24.22 | -24.22 | -24.22 | -24.22 | -24.23 | -24.22 | -24.21 | | LPOFS | -6.74 | -6.73 | -6.72 | -6.70 | -6.69 | -6.69 | -6.69 | -6.69 | -6.68 | -6.68 | -6.67 | -6.66 |
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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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