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orthopedic fixation device

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001606
EISBN: 978-1-62708-226-6
..., or plates, these orthopedic devices are surgically implanted and affixed to bones, usually with screws of the same alloy composition. Fixation implants usually remain in the human body until the broken bone has healed sufficiently to sustain normal loading without the additional support provided...
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 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...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001801
EISBN: 978-1-62708-241-9
.... orthopedic fixation device fracture surface damage titanium alloy notches roughness metallography fatigue crack growth rates ASTM F136 (alpha-beta titanium alloy) UNS R56401 Introduction Investigation Discussion Conclusions References References 1. http://www.scoliosis.org...
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
... 64 ). Examples of internal fixation devices include metal plates, rods, screws, pins, nails, and wires. The purpose of these devices is to promote healing of the fractured bone or other intended structure. Like long-term orthopedic and cardiovascular devices, internal fixation devices...
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
... schematically such a device in position. This device is frequently used for fixation of fractures across the neck of the femur and also for fixation of subtrochanteric fractures. Fig. 1 A drawing showing a compression hip screw device of the type investigated here, used for fracture fixation...
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
....2006.11.010 4. Sivakumar M.M. , Kamachi Mudali U. , Rajeswari S. , Investigation of failures in stainless steel orthopaedic implant devices fatigue failure due to improper fixation of a compression bone plate . J. Mater. Sci. Lett. 13 , 142 – 145 ( 1994 ) 10.1007/BF00416827 5...
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
... failure than the specified cold-worked material. Most Probable Cause Remedial Action How Failure Could Have Been Prevented Bone screws are used to fasten bone plates during the surgical implantation of fixation devices employed to maintain the shape of a reconstructed bone in fracture...
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
...), to 324,000 cycles per month (with 6 h motion per day). 6 Fatigue is a frequent cause of hip-fracture-fixation device failure. 7 In April 1999, a young patient received a stainless steel plate implant for a femoral fracture in the third medial left femur. Sixteen days later the patient was urgently...
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
... discussed. 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...
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
... Organization for Standardization , ISO 12891-4:2000(E), Geneve , p. 12 . 15. Daniel A.U. and Dunn H.K. : Proc. Symp. on Retrieval and Analysis of Orthopedic Implants , NBS Special Publication 472 , Maryland , 1976 , pp. 61 – 71 . 16. Anon : Medical Equipment and Devices Industry...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048400
EISBN: 978-1-62708-226-6
... carbide precipitates. 180x. (d) Fracture surface under scanning electron microscope indicating intercrystalline corrosion with pits on grain surfaces For this internal fixation, orthopedic wire of an insufficient stainless steel type was used. Improper heat treatment of the steel lead...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001265
EISBN: 978-1-62708-215-0
... and mineralize, locking the device into place. This is termed biological fixation. During loading, however, this porous network is subjected to variable and nonintuitive stresses (that is, tensile stresses on a nominally compressive stress region), which may cause fracture or loss of the porous coating...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001264
EISBN: 978-1-62708-215-0
.... Manufacturers should never attempt to salvage this type of critical device by welding or any other procedure that might compromise its integrity. Repair welding Surgical implants 316L UNS S31603 Fatigue fracture Joining-related failures Background Visual Examination of General Physical Features...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... are extruded 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. Fig. 21 Cross-sectional view of a white layer of martensite produced by fretting of a carbon steel connecting rod...