Investigating chemical changes in knee implants to improve their longevity
Official title: In vivo chemical changes of contemporary polyethylene in TKA: implications for wear and osteolysis
Funded at Rush University Medical Center · NIH-11174973 · Data updated 2026-11-12
This study is looking at how the materials used in knee replacement parts change over time in your body, to help make these implants last longer and work better for people who have had knee surgery.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Rush University Medical Center NIH-funded |
| Lab location | 1 site (Chicago, United States) |
| Project start | September 1, 2024 |
| Project end | August 31, 2025 |
| Funding year | 2024 |
| Award (this year) | $395,171 |
| NIH project number | 1R56AR082872-01A1 |
| Project ID | NIH-11174973 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal candidates for this research are individuals undergoing total knee arthroplasty or those who have received knee implants and are experiencing complications.
✕Less likely to help
Patients who have not undergone knee surgery or those with conditions unrelated to knee implants may not benefit from this research.
What this research studies
This research aims to understand how the chemical structure of polyethylene tibial liners in total knee arthroplasty (TKA) changes within the body over time. By examining these changes, the study seeks to determine their effects on the wear and mechanical behavior of the implants, which can lead to complications like osteolysis. The research employs advanced techniques such as FTIR imaging and finite element analysis to predict how these chemical alterations impact the longevity of knee implants. Ultimately, the goal is to enhance the design and materials used in knee replacements to ensure they last longer and perform better for patients.
Why it matters
Potential benefit: If successful, this research could lead to longer-lasting knee implants, reducing the need for revision surgeries and improving patient quality of life.
How similar studies have gone: Previous research has shown promising results in understanding wear mechanisms in knee implants, suggesting that this approach could yield valuable insights.
Where this research is happening
-
Rush University Medical Center
Chicago, United States Active
Researchers
- Principal investigator: Lundberg, Hannah Jean — Rush University Medical Center
- Study coordinator: Lundberg, Hannah Jean
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.