Fracture analysis of retrieved orthopedic wires

Journal of Biomedical Materials Research
I L BaswellC O Bechtol

Abstract

Ten retrieved samples of 316L stainless steel wires, implanted for times from 11 months to 11 years, were examined fractographically and metallurgically to evaluate the effects of a physiological environment on their fracture. Seven samples were from L-rod instrumentation, and three samples were from trochanter reattachment. Of 16 breaks in the 10 samples, 94% were caused primarily by cyclic loading (fatigue), and 6% were caused by tensile forces. Two factors were found to influence the effective life of an implanted wire. First, the surface condition (deformation) appeared to be most important, and second, corrosion pits present on most wire surfaces could possibly be an influence in initiating a crack. Biomechanical forces on wires enveloping L-rods tended to promote metal deformation and faceting, which decreased time to fracture. This decrease in wire life was evident from a substantial hardness increase in faceted areas.

References

Oct 1, 1977·Journal of Dental Research·A J GoldbergC J Burstone
Apr 1, 1978·Journal of Dental Research·W A BrantleyR V Winders
Jul 1, 1979·Journal of Dental Research·W A Brantley, C L Myers
Jul 1, 1977·Journal of Biomedical Materials Research·J W Pugh, W L Jaffe
Jul 1, 1976·Journal of Dental Research·W A Brantley
Nov 1, 1975·Journal of Biomedical Materials Research·R M Rentler, N D Greene
Jan 1, 1983·The Journal of Bone and Joint Surgery. British Volume·D M Dall, A W Miles
Jul 1, 1983·Journal of Biomedical Materials Research·T W SanderI Oh
Jul 1, 1983·Journal of Dental Research·A J GoldbergC J Burstone
Sep 1, 1983·Journal of Dental Research·A J GoldbergH A Koenig
Feb 1, 1981·Journal of Dental Research·D K YoshikawaJ Morton

❮ Previous
Next ❯

Citations

May 1, 1997·Veterinary Surgery : VS·P D HansonM D Markel
Feb 9, 2000·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·K HattoriY Ikada
Feb 7, 2003·Journal of Orthopaedic Trauma·R M HarrellLaurence E Dahners

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Biomedical Materials Research
J W Pugh, W L Jaffe
Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
M D MarkelE Y Chao
Journal of Biomedical Materials Research
R M Rentler, N D Greene
© 2021 Meta ULC. All rights reserved