Bio-tribological behavior of articular cartilage based on biological morphology

Abstract

Artificial hemiarthroplasty is one of the effective methods for the treatment of hip joint diseases, but the wear failure of the interface between the hemi hip joint material and articular cartilage restricts the life of the prosthesis. Therefore, it is important to explore the damage mechanism between the interfaces to prolong the life of the prosthesis and improve the life quality of the prosthesis replacement. In this paper, the creep and bio-tribological properties of cartilage against PEEK, CoCrMo alloy, and ceramic were studied, and the tribological differences between “hard–soft” and “soft–soft” contact were analyzed based on biomorphology. The results showed that with the increase of time in vitro, the thickness of the cartilage membrane decreased, the surface damage was aggravated, and the anti-creep ability of cartilage was weakened. Second, the creep resistance of the soft–soft contact pair was better than that of the hard–soft contact pair. Also, the greater the load and the longer the wear time, the more serious the cartilage damage. Among the three friction pairs, the cartilage in PEEK/articular cartilage was the least damaged, followed by CoCrMo alloy/articular cartilage, and the most damage was found in ceramic/articular, indicating that the soft–soft friction pair inflicted the least damage to the cartilage.

Synergistic Effect of Nano Strontium Titanate Coating and Ultraviolet C Photofunctionalization on Osteogenic Performance and Soft Tissue Sealing of poly(ether–ether–ketone)

“…PEEK is gradually used in oral implants having the advantages of excellent mechanical properties, reliable biological safety, easy processing, X-ray transparency, and elastic modulus (3− 18 GPa) similar to bone (14 GPa) [8]. However, the poor biological activity limits PEEK's clinical application as a dental implant material.…”

“…However, Ti is not perfect because of its host immune response, the release of metallic elements, aesthetic defects, and difference in elastic modulus gradients with the surrounding bone, leading to a new direction of research on nonmetallic implants. , Polyetheretherketone (PEEK), a new linear aromatic, semicrystalline polymer, is considered to be the most promising nonmetallic bioprosthetic material due to its excellent mechanical properties and superior biocompatibility . Approved by the US Food and Drug Administration, PEEK and its composites have been used in joint replacement, spinal implants, and trauma repair, with satisfactory clinical results. − In dentistry, PEEK has shown promising prospects for application as the material for CAD/CAM-fabricated crowns, clasps and framework of removable dentures, orthodontic wires, etc. − In implant treatment, PEEK is the potent material for implant, abutment, and also crown . However, the hydrophobic and biologically inert surface of PEEK impedes its integration with the surrounding bone and soft tissues, reducing the initial stability and long-term efficacy of the implant and ultimately leading to implant failure .…”

A review of advances in tribology in 2020–2021

“…A hydrogel-elastomer hybrid surface was fabricated with enhanced mechanical properties and lubrication [649]. Multilayer hydrogel material was grafted on ultra high molecular weight polyethylene (UHMWPE) substrate to simulate a bone−cartilage layered structure with improved lubrication [650]. Macroscale superlubricity was achieved between zwitterionic copolymer hydrogel and sapphire in water [651].…”

Synergistic effect of nano strontium titanate (SrTiO3) coating and ultraviolet C photofunctionalization on osteogenic performance and soft tissue sealing of poly (ether-ether-ketone) (PEEK)

“…Approved by the US Food and Drug Administration, PEEK and its composites have been used in joint replacement, spinal implants, and trauma repair, with satisfactory clinical results [7][8][9][10]. In dentistry, PEEK have shown promising prospects for application as the material for CAD/CAM-fabricated crown, clasp and framework of removable denture, orthodontic wires and etc.…”