Next-generation implants inspired by Lego
Anders Palmquist, professor of biomaterials science at Sahlgrenska Academy, is leading a research project to develop innovative implants that improve healing and quality of life for patients. The project has received a grant of 3.5 million SEK from the IngaBritt and Arne Lundberg Research Foundation to acquire an advanced X-ray tomograph.
"The new X-ray tomograph provides us with high-resolution 3D images of bone and implant materials. This is crucial for understanding how the materials function and how bone formation occurs. With new technology, we achieve faster processes and higher resolution, leading to more efficient and precise analyses," says Anders Palmquist, who conducts biomaterials research at the Institute of Clinical Sciences.
Biodegradable implants
Anders Palmquist’s research focuses on replacing traditional permanent metal implants with biodegradable materials, such as magnesium. Magnesium naturally degrades in the body as the bone heals. The technique, which utilizes additive manufacturing (also known as 3D printing), enables the development of patient-specific implants with several advantages:
- Natural degradation: The implants support bone healing and gradually dissolve, reducing the need for additional surgeries to remove them.
- Anatomical precision: Customized solutions improve fit, mobility, and function—especially for complex hand fractures.
- Sustainability: Additive manufacturing uses less material, and any unused material can be directly recycled in the production process.
Comparing the technique to Lego
"We compare the technique to Lego. Just like Lego is built from small pieces, we use additive manufacturing to create complex geometric structures with exact precision. The difference is that we work on a microscopic level and use materials that are both biodegradable and functional in the body," says Anders Palmquist.
The research team is particularly focused on treating complex hand fractures, where anatomical precision is critical for mobility and quality of life. By designing implants specifically for each patient’s unique needs, healing can be improved, and more natural results can be achieved.
"Hand fractures are often challenging to treat. With our technology, we can customize implants that optimally support bone formation. This is an important step forward for modern surgery," says Anders Palmquist.
A key role for the X-ray tomograph
The advanced X-ray tomograph is a key component of the research. It enables detailed 3D analyses of the structure and function of materials, helping the research team ensure that the implants have the right properties to function optimally in the body.
The need for new biomaterials is increasing as more people live longer and want to remain active. Through sustainable production and the use of biodegradable materials such as magnesium, research can reduce environmental impact while improving patients' quality of life.
Text: Lundbergsstiftelsen