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- W4328131289 abstract "This study investigated the determination of detailed microstructure modeling of the trochlea of the superior oblique muscle (SOM) using micro-computed tomography (micro-CT) and modeling of a potential prototype for a trochlea implant using three-dimensional (3D) printing. We dissected 15 intact orbits of 15 embalmed cadavers. The trochleae of the SOM were detached from the periosteum. The specimens were stained by immersion in a 15% Lugol’s solution. Images were reconstructed using conventional scanner software. Measurement points were determined for the middle cross section. Points P1 and P2 were selected where the SOM adjoined the curvature of the inner trochlea. They defined the inner contact points of the SOM in the inner part of the trochlea curvature. On the back of the trochlea, points P3 and P4 were selected at the uppermost and lowest points in the inner parts of the straight trochlea, respectively. Origin O was defined on the arcuate line of $$widehat{P1P2}$$ to generate the smallest-diameter circle consisting of P1, O, and P2. We then measured the angle from $$overline{OP1 } to overline{ OP2 }$$ , and from $$overline{OP3 } to overline{OP4 }.$$ We also measured the distances $$overline{OP1 }, overline{OP2 }, overline{OP3 }, and overline{OP4 }$$ for the design of a potential trochlea implant prototype using 3D-printing and micro-CT-based modeling. The distances $$overline{OP1 }, overline{OP2 }, overline{OP3 }, and overline{OP4 }$$ were 2.2 ± 0.7, 1.4 ± 0.5, 2.7 ± 0.9, and 2.5 ± 0.4 mm (mean ± SD), respectively. The angles from $$overline{OP1 } to overline{OP2 }$$ , from $$overline{OP2 } to stackrel{-}{OP4,}$$ and from $$overline{OP3 } to overline{OP4 }$$ were 100.7 ± 14.4, 66.3 ± 18.0, and 98.9 ± 24.9 degrees, respectively. The present investigation demonstrates that the high-resolution CT is a powerful imaging technique for defining the true 3D geometry of a specimen and can potentially be used to create a 3D-printed trochlea implant." @default.
- W4328131289 created "2023-03-22" @default.
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- W4328131289 date "2023-03-21" @default.
- W4328131289 modified "2023-10-16" @default.
- W4328131289 title "3D printing from micro-CT images of the trochlea of the superior oblique muscle and its future applications" @default.
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- W4328131289 doi "https://doi.org/10.1007/s00170-023-11268-6" @default.
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