Biocompatibility Testing for Bone Cement in Multiple States
Case study
Biocompatibility assessment of medical products is essential when introducing new formulations. This case study examines how Lucideon navigated the analytical and regulatory challenges of evaluating a highly soluble bone cement whilst ensuring representative extraction and reliable chemical characterisation for regulatory submission.
The challenge
A client approached Lucideon to perform biocompatibility testing on a new bone cement formulation intended for orthopaedic applications. Its highly soluble nature in certain solvents required careful planning to ensure representative extraction without compromising the integrity of the material. The client requested that testing be performed after the cement had been stored in its delivery cannula reflecting real-world conditions.
To provide a complete evaluation of the formulation, testing in both uncured state (as delivered) and cured state (post-application) was necessary to ensure that chemical characterisation captured potential extractables from both forms. This dual-state approach was critical for regulatory compliance and for understanding any differences in chemical profiles between the two conditions.
What we delivered
Lucideon designed and executed a comprehensive chemical characterisation program in accordance with ISO 10993 guidelines. Our team developed extraction strategies that accounted for the cement’s solubility characteristics, selecting appropriate solvents and conditions to avoid excessive dissolution while still achieving conservative, worst-case extraction.
We performed detailed analytical testing using a combination of techniques to identify and quantify organic and inorganic extractables. The resulting data was compiled into a comprehensive analytical report, including method descriptions, identification confidence levels, and toxicological considerations, providing the client with a robust evidence base for regulatory submission for their new product.
Value to the client
Lucideon's testing enabled the client to meet critical biocompatibility requirements and close regulatory gaps during the journey to market for their new bone cement product. By addressing the challenges of solvent solubility and testing both material states, Lucideon delivered scientifically defensible data that supported device compliance. This work allowed the client to move forward confidently with their submission and reduce time to market for an orthopaedic solution that will improve patient outcomes.