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orthopedic surgery

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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
... to corrode in most clinical situations where multicomponent implants are involved. Despite their marginal corrosion resistance, stainless steels have been used in orthopedic surgery since the 1930's because of their availability and mechanical properties. At the present time, stainless steels...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001573
EISBN: 978-1-62708-226-6
... Abstract TiN coated back surgery wires were made of Ti-6Al-4V. The reported failure was the presence of pits located in the uncoated area of the wires. The uncoated area of the wire is where the wire is fixtured in the coating chamber during coating. Examination and analysis of the pits using...
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
... (SEM image) 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...
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
... for 10 h to highlight grain size. The Harrington rod, developed in 1953 by Paul Harrington, a professor of orthopedic surgery at Baylor College of Medicine in Houston, Texas, was implanted along the spinal column to treat lateral curvature of the spine. Harrington rods were intended to provide...
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...
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
... of the reconstructed bone in fracture treatment of the injured patient or, in corrective orthopedic surgery, to stabilize osteotomies (sectioning and realignment of bone) or to perform arthrodeses (stiffening of joints by fusion of bones). Various types and sizes of bone plates, bone screws, intramedullary rods (nails...
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
... composition of the oral maxillofacial plate (Ti-6Al-4V alloy) was not in accordance with the minimum requirements of ISO 5832-3. Plates used in maxillofacial surgery are, however, usually fabricated in commercially pure titanium alloys (CP Ti), 26 and the chemical composition and grain size were...
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
... of the femur. The results of a metallurgical failure analysis of a broken compression hip screw assembly is presented in this paper. The device was used for the fixation of a subtrochanteric fracture. About nine months after the initial surgery for implantation, the patient complained of pain and x-rays...
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
..., 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 by the implant. After several...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001610
EISBN: 978-1-62708-222-8
... is to correlate possible defects observed in the jewelry with the occurrence of adverse reactions. Investigation Due to the lack of specific standards for body-piercing material, this investigation compared results to the ISO standards for metallic materials used in implants for surgery. 7 Six samples...
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
... collected from patients after revision surgery was performed to replace the failed components. Those devices that best represented the nature and origin of the failure are discussed in this study. Some of the retrieved implants were severely damaged from postfracture abrasion and from removal. Visual...
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