Inflammatory Response II: Inflammatory Exudate and Tissue Repair
Inflammatory Response
Inflammatory Response I: Vascular and Cellular
Response Surface Methodology
Cell-surface Signaling
Plant Cells and Tissues
You might also read
Articles linked to this work by shared authors, journal, and citation graph.
Updated: Feb 8, 2026

A Standardized Method for Measuring Internal Lung Surface Area via Mouse Pneumonectomy and Prosthesis Implantation
Published on: July 26, 2017
J Bertrand1, D Delfosse2, V Mai2
1Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany.
This study explored how ceramic-on-ceramic hip implants affect surrounding tissues. It found that these implants cause more fibrotic tissue changes than other implant types. The researchers compared tissue samples from ceramic-on-ceramic, metal-on-metal, and ceramic-on-polyethylene implants. They found that fibrosis increased with implantation time in all cases, but was most severe with ceramic-on-ceramic. The study also showed that fibroblasts and immune cells responded more strongly to one type of ceramic surface than another. These findings suggest that ceramic-on-ceramic implants may lead to long-term tissue changes due to ongoing inflammation. The results help explain why some patients experience fibrotic reactions after receiving these implants.
10:42Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration
Published on: May 13, 2016
08:29Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)
Published on: January 7, 2019
Area of Science:
Background:
Prior research has shown that different implant materials elicit distinct tissue reactions. Established knowledge includes the role of wear particles in periprosthetic inflammation, particularly in metal-on-metal and polyethylene implants. However, less is known about ceramic-on-ceramic articulations and their specific biological effects. This gap motivated a closer examination of how ceramic surfaces interact with surrounding tissues. No prior work had resolved whether ceramic-on-ceramic implants provoke unique inflammatory or fibrotic responses. The need to compare ceramic-on-ceramic with other bearing types remains unmet in current literature. This uncertainty drove the investigation into cellular and tissue-level effects of ceramic prostheses. The study aimed to clarify whether ceramic-on-ceramic implants lead to distinct fibrotic changes compared to other implant types.
Purpose Of The Study:
The study aimed to investigate the tissue and cellular responses to ceramic-on-ceramic total hip arthroplasty (THA) materials. It focused on comparing these responses with those from metal-on-metal and ceramic-on-polyethylene implants. The specific problem addressed was the lack of understanding about how ceramic-on-ceramic articulations affect periprosthetic tissues. The motivation stemmed from emerging evidence suggesting ceramic-on-ceramic implants may provoke unique biological reactions. The study sought to determine whether fibrotic changes are more pronounced with ceramic-on-ceramic bearings. It also aimed to evaluate the inflammatory potential of different ceramic surfaces. The goal was to provide insights into the biological mechanisms behind observed tissue changes. This could help improve implant design and patient outcomes in the future.
Main Methods:
The study used tissue samples collected during revision surgeries from nine ceramic-on-ceramic THAs. These were compared with tissue from five metal-on-metal and four ceramic-on-polyethylene implants. Synovial membranes from four primary osteoarthritis cases served as controls. Tissue fibrosis was assessed using histological analysis. Fibroblast and peripheral blood mononuclear cell (PBMC) cultures were conducted on two ceramic types: ATZ and ZTA. The inflammatory response was measured through cytokine expression. The study also evaluated implantation time's effect on fibrosis levels. The comparison of ceramic types allowed for differentiation in biological responses. This approach enabled a detailed analysis of how ceramic surfaces influence cellular behavior.
Main Results:
Tissue fibrosis increased significantly with implantation time across all implant types. Ceramic-on-ceramic implants showed higher fibrosis levels than metal-on-metal and ceramic-on-polyethylene. Fibroblasts cultured on ATZ surfaces exhibited stronger cytokine responses than those on ZTA. PBMCs also showed a more pronounced inflammatory reaction to ATZ ceramics. The presence of ceramic wear particles in periprosthetic tissues was confirmed. Fibrotic changes were more severe in ceramic-on-ceramic cases. The inflammatory response of fibroblasts and PBMCs was linked to ceramic surface composition. These findings partially explain the observed fibrotic tissue changes in ceramic-on-ceramic implants.
Conclusions:
The authors concluded that ceramic-on-ceramic implants provoke distinct fibrotic tissue changes. Their findings suggest that these changes are linked to inflammatory responses from fibroblasts and PBMCs. The study showed that fibrosis increases with implantation time in all implant types. However, ceramic-on-ceramic implants exhibited significantly higher fibrosis than other types. The inflammatory response was more pronounced on ATZ ceramics compared to ZTA. This may explain the observed fibrotic changes in periprosthetic tissues. The presence of ceramic wear particles supports the inflammatory mechanism. The results corroborate prior observations about fibrotic tissue in ceramic-on-ceramic implants.
The study found that ceramic-on-ceramic implants induce higher fibrotic tissue changes compared to other implant types.
Tissue samples from nine ceramic-on-ceramic, five metal-on-metal, and four ceramic-on-polyethylene implants were analyzed for fibrosis and inflammatory markers.
This control group helped assess baseline fibrosis levels unrelated to implantation, ensuring accurate comparisons.
ATZ ceramics induced stronger fibroblast and PBMC inflammatory responses than ZTA ceramics, suggesting surface composition affects tissue reactions.
Histological analysis of tissue samples collected during revision surgeries was used to assess fibrosis levels.
The study suggests that these implants may lead to persistent fibrotic changes due to ongoing inflammatory responses from fibroblasts and PBMCs.