U.S. Department of Energy Office of Scientific and Technical Information
A comparative study on the physicochemical characteristics of nanoparticles released in vivo from CoCrMo tapers and cement–stem interfaces of total hip replacements
Journal Article·· Journal of Biomedical Materials Research - Part B: Applied Biomaterials
The good biocompatibility and corrosion resistance of the bulk CoCrMo alloy has resulted in it being used in the manufacture of implants and load bearing medical devices. These devices, however, can release wear and corrosion products which differ from the composition of the bulk CoCrMo alloy. The physicochemical characteristics of the particles and the associated in vivo reactivity are dictated by the wear mechanisms and electrochemical conditions at the sites of material loss. Debris released from CoCrMo hip bearings, taper junctions, or cement–stem interfaces can, therefore, have different chemical and morphological characteristics, which provide them with different in vivo toxicities. Here, we propose to assess and compare the characteristics of the particles released in vivo from CoCrMo tapers and cement–stem interfaces which have received less attention compared to debris originating from the hip bearings. The study uses state–of–art characterization techniques to provide a detailed understanding of the size, morphology, composition, and chemistry of the particles liberated from the wear and corrosion flakes from revised hip replacements, with an enzymatic treatment. The phase analyses identified Cr2O3 nanoparticles released from tapers and cement–stem interfaces, whose composition did not vary with origin or particle morphology. The size distributions showed significantly smaller particles were released from the stems, compared to the particles originating from the corresponding tapers. Furthermore, the investigation demonstrates that the tribocorrosive processes occurring at the taper and stem interfaces both result in Cr2O3 nanoparticle formation.
Crainic, Alina M., et al. "A comparative study on the physicochemical characteristics of nanoparticles released in vivo from CoCrMo tapers and cement–stem interfaces of total hip replacements." Journal of Biomedical Materials Research - Part B: Applied Biomaterials, vol. 108, no. 8, Jun. 2020. https://doi.org/10.1002/jbm.b.34667
Crainic, Alina M., Callisti, Mauro, Veelen, Arjen, Michalik, Agnes, Milton, James A., Palmer, Martin R., & Cook, Richard B. (2020). A comparative study on the physicochemical characteristics of nanoparticles released in vivo from CoCrMo tapers and cement–stem interfaces of total hip replacements. Journal of Biomedical Materials Research - Part B: Applied Biomaterials, 108(8). https://doi.org/10.1002/jbm.b.34667
Crainic, Alina M., Callisti, Mauro, Veelen, Arjen, et al., "A comparative study on the physicochemical characteristics of nanoparticles released in vivo from CoCrMo tapers and cement–stem interfaces of total hip replacements," Journal of Biomedical Materials Research - Part B: Applied Biomaterials 108, no. 8 (2020), https://doi.org/10.1002/jbm.b.34667
@article{osti_1647232,
author = {Crainic, Alina M. and Callisti, Mauro and Veelen, Arjen and Michalik, Agnes and Milton, James A. and Palmer, Martin R. and Cook, Richard B.},
title = {A comparative study on the physicochemical characteristics of nanoparticles released in vivo from CoCrMo tapers and cement–stem interfaces of total hip replacements},
annote = {The good biocompatibility and corrosion resistance of the bulk CoCrMo alloy has resulted in it being used in the manufacture of implants and load bearing medical devices. These devices, however, can release wear and corrosion products which differ from the composition of the bulk CoCrMo alloy. The physicochemical characteristics of the particles and the associated in vivo reactivity are dictated by the wear mechanisms and electrochemical conditions at the sites of material loss. Debris released from CoCrMo hip bearings, taper junctions, or cement–stem interfaces can, therefore, have different chemical and morphological characteristics, which provide them with different in vivo toxicities. Here, we propose to assess and compare the characteristics of the particles released in vivo from CoCrMo tapers and cement–stem interfaces which have received less attention compared to debris originating from the hip bearings. The study uses state–of–art characterization techniques to provide a detailed understanding of the size, morphology, composition, and chemistry of the particles liberated from the wear and corrosion flakes from revised hip replacements, with an enzymatic treatment. The phase analyses identified Cr2O3 nanoparticles released from tapers and cement–stem interfaces, whose composition did not vary with origin or particle morphology. The size distributions showed significantly smaller particles were released from the stems, compared to the particles originating from the corresponding tapers. Furthermore, the investigation demonstrates that the tribocorrosive processes occurring at the taper and stem interfaces both result in Cr2O3 nanoparticle formation.},
doi = {10.1002/jbm.b.34667},
url = {https://www.osti.gov/biblio/1647232},
journal = {Journal of Biomedical Materials Research - Part B: Applied Biomaterials},
issn = {ISSN 1552-4973},
number = {8},
volume = {108},
place = {United States},
publisher = {Wiley},
year = {2020},
month = {06}}
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1647232
Alternate ID(s):
OSTI ID: 1841923
Journal Information:
Journal of Biomedical Materials Research - Part B: Applied Biomaterials, Journal Name: Journal of Biomedical Materials Research - Part B: Applied Biomaterials Journal Issue: 8 Vol. 108; ISSN 1552-4973