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bone plates

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Published: 01 January 2002
Fig. 18 Stainless steel bone plate with fatigue crack and broken screw. (a) Radiograph taken 13 weeks after operation. Anterior-posterior view. Arrows indicate crack in plate and open fracture gap. (b) Corresponding lateral view. Arrow indicates broken screw. (c) Bend in plate More
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Published: 01 January 2002
Fig. 19 Fracture surfaces of the failed screw and bone plate shown in Fig. 18 . (a) Longitudinal section through fractured screw showing edge of fracture surface and high inclusion content. A large slag inclusion was present at the void under the fracture edge. 55×. (b) Fracture surface More
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Published: 01 January 2002
Fig. 28 Fatigue-fracture surface of broken commercially pure titanium bone plate with mixed fracture morphology. (a) Fracture surface shows fatigue striations, terraces, and tearing ridges, depending on the local crystallographic orientation. 250×. (b) Higher magnification view of the area More
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Published: 01 January 2002
Fig. 31 Connective tissue near stainless steel bone plate with impregnation of corrosion products. These products are found extracellularly and in the connective tissue cells. 230× More
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Published: 01 January 2002
Fig. 7 Fracture in an orthopedic bone plate. A failure was caused by fretting damage (loss of protective oxide layer) in the countersunk portion of the plate. More
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Published: 01 June 2012
Fig. 13 SEM image of fatigue striations in a 316L stainless steel bone plate More
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Published: 01 June 2012
Fig. 23 Bone plate fractured in fatigue. Crack initiation locations are indicated by arrows. The fatigue fracture first initiated on and propagated through the narrow side before reinitiating on the thicker section. More
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Published: 12 September 2022
Fig. 16 Novel bone plate in which the elastic modulus is changed based on the position of the low-elastic-modulus (red) and high-elastic-modulus (green) parts. The central part for fixing the fractured bone part is controlled to have low elastic modulus, and the screw part is controlled More
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Published: 01 January 2002
Fig. 2 Typical examples for orthopedic internal fixation devices (schematic). (a) and (b) Round hole bone plates (can be used with compression devices). (c) Classical Sherman bone plate. (d) to (g) Dynamic compression plates of various sizes. (h) Compression bone plate with glide holes. (i More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
...-to-metal (McKee) Fig. 2 Typical examples for orthopedic internal fixation devices (schematic). (a) and (b) Round hole bone plates (can be used with compression devices). (c) Classical Sherman bone plate. (d) to (g) Dynamic compression plates of various sizes. (h) Compression bone plate with glide...
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Published: 01 January 2005
corrosion under the screwheads where they contact the bone plate. Control: Better understanding by patients to heed advice. Avoid direct body weight to minimize stresses on the component. For long-term remediation and service, stainless steels are replaced by other more resistant materials More
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Published: 30 August 2021
Fig. 11 Optical micrographs showing fretting damage at the screw-plate interfaces of a titanium bone plate More
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Published: 01 January 2002
Fig. 30 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate hole showing mechanical and pitting corrosion attack. 15×. (b) Higher-magnification view of shallow More
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Published: 01 January 2002
Fig. 35 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate hole showing mechanical and pitting corrosion attack. 15×. (b) Higher-magnification view of shallow More
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Published: 12 September 2022
Fig. 32 (a) Actual component produced by laser-engineered net shaping in the as-deposited state. (b) Sectioned component on which the characterization was done. (c) Final component being shown as the representative bone plate. (d) Dimensions of the printed part with the expected composition More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... on the device "failures" that include fracture, wear, and corrosion. The article first discusses failure modes of long-term orthopedic and cardiovascular implants. The article then focuses on short-term implants, typically bone screws and plates. Lastly, failure modes of surgical tools are discussed...
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Published: 15 January 2021
Fig. 42 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate hole showing mechanical and pitting corrosion attack. Original magnification: 15×. (b) Higher More
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Published: 30 August 2021
Fig. 31 High-magnification image of fracture surface of a bone fixation plate. Fatigue striations can be clearly seen on the fracture surface at high magnification. More
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005659
EISBN: 978-1-62708-198-6
..., and polylactides for bone plates in orthopaedic and maxillofacial applications. The concept of a device that can change its shape when initiated by a signal, such as temperature or a pH change, would allow a surgeon to insert the device in a collapsed form as an aid to the surgical procedure and it expands...
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Published: 01 January 2002
Fig. 5 Schematic of different degrees of stability in internal fixations. (a) Best possible stabilization with tension band fixation. The plate is on the tension side of the bone. The fracture site is compressed by means of the plate, which was applied under tension. If the bone surface More