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implants

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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
... Abstract This article commences with a description of the prosthetic devices and implants used for internal fixation. It describes the complications related to implants and provides a list of major standards for orthopedic implant materials. The article illustrates the body environment and its...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001690
EISBN: 978-1-62708-226-6
... Abstract This paper summarizes several cases of metallurgical failure analysis of surgical implants conducted at the Laboratory of Failure Analysis of IPT, in Brazil. Investigation revealed that most of the samples were not in accordance with ISO standards and presented evidence of corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001804
EISBN: 978-1-62708-241-9
... Abstract A stainless steel screw securing an orthopedic implant fractured and was analyzed to determine the cause. Investigators used optical and scanning electron microscopy to examine the fracture surfaces and the microstructure of the austenitic stainless steel from which the screw was made...
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Published: 01 June 2019
Fig. 2 Macroscopic views of two of the failed fixation device implants. Note the failures at the reduced cross sections of the screw attachment holes. 8 More
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Published: 01 December 2019
Fig. 2 Radiographs of failed implants. ( a ) Spinal rod failure. ( b ) Intramedullar nail fracture and osteosynthesis failure. ( c ) Subtrochanteric plate (jewet) fracture failure. ( d ) Femur diaphyseal fracture failure of a compression plate More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001579
EISBN: 978-1-62708-226-6
... Abstract Stainless steel is frequently used for bone fracture fixation in spite of its sensitivity to pitting and cracking in chloride containing environments (such as organic fluids) and its susceptibility to fatigue and corrosion fatigue. A 316L stainless steel plate implant used for fixation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001664
EISBN: 978-1-62708-226-6
... Plastic deformation Surgical implants 316L UNS S31603 Fatigue fracture Corrosion fatigue In fractures of and around the head of the femur, a compression hip screw surgical implant is sometimes employed to provide bone alignment and fixation during healing. Figure 1 shows schematically...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
.... orthopedic implant devices fracture corrosion inclusions and stress gaps medical materials cracking fretting pitting fractography fracture toughness Ti6Al4V (titanium-aluminum-vanadium alloy) UNS R56406 316L stainless steel (austenitic wrought stainless steel) UNS S31603 Introduction...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001097
EISBN: 978-1-62708-214-3
... Abstract Two type 316L stainless steel orthopedic screws broke approximately 6 weeks after surgical implant. The screws had been used to fasten a seven-hole narrow dynamic compression plate to a patient's spine. The broken screws and screws of the same vintage and source were examined using...
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Published: 01 January 2002
Fig. 21 Fatigue curves of type 316LR stainless steel implant material tested in bending mode. (a) S-N curves for stainless steel in cold-worked and soft condition that was tested in air and aerated lactated Ringer's solution. (b) Fatigue curve for number of cycles to failure as shown in Fig More
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Published: 01 January 2002
Fig. 28 Effect of ion implantation on the coefficient of friction in fretting of IMI 550 titanium alloy at 500 °C (930 °F) More
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Published: 01 January 2002
Fig. 39 Stress-corrosion cracking in a 316 stainless steel orthopedic implant More
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Published: 30 August 2021
Fig. 10 Schematic showing the “race to healing” for an implant More
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Published: 30 August 2021
Fig. 17 Fracture surface of a fractured Ti-6Al-4V hip implant More
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Published: 30 August 2021
Fig. 20 Optical microscopy image of fracture surfaces of a knee implant hinge post, which fractured in vivo More
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Published: 15 January 2021
Fig. 39 Stress-corrosion cracking in a 316 stainless steel orthopedic implant More
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Published: 01 June 2019
Fig. 3 Designs of an asymmetric and a symmetric fixation implant device and the applied finite-element mesh with the von Mises stress contours for a unit stress applied to the cross section of the two plates More
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Published: 01 December 1992
Fig. 1 Porous, coated knee implant, as received. Insufficient bonding occurred at the tip of the patella flange. More
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Published: 01 December 2019
Fig. 1 Several implant failures that occurred in the authors’ patients More
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Published: 01 December 1993
Fig. 1 As-received Jewett nail implant. More