Porous coatings are used in the field of joint replacement, particularly in cementless total hip/knee arthroplasty. This article reviews the offerings and biomaterial properties in orthopedic surgery for the contemporary class of highly porous metals. It describes the traditional porous metals/coatings having an open-cell structure, high porosity, and a microstructure resembling that of the cancellous bone. The traditional porous metal/coating includes fiber-metal mesh, cobalt-chromium (CoCr) beads, cancellous-structured titanium, and plasma spray. The article discusses other porous metals/coatings that have been developed due to the limitations of traditional porous metals for numerous open-cell-structured metals, such as titanium-base foams and trabecular metals.
D.W. Fabi, B.R. Levine, Porous Coatings on Metallic Implant Materials, Materials for Medical Devices, Vol 23, ASM Handbook, Edited By Roger J. Narayan, ASM International, 2012, p 307–319, https://doi.org/10.31399/asm.hb.v23.a0005656
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