Radiostereometric Analysis (RSA) remains at the forefront of measuring skeletal and implant movements with exceptional precision in vivo. Developed in the early 1970s by Göran Selvik, this method involves inserting tantalum markers into bone during surgery, allowing for accurate three-dimensional measurements through simultaneous radiographs and specialized calibration.

Over the years, RSA has evolved significantly with digital radiographs, advanced software, and computed tomography (CT) enabling quicker analysis and a broad user base. Its applications span implant fixation and wear tracking, bone growth measurement, fracture healing assessment, osteotomy stability evaluation, tendon healing, and dynamic movement studies.

Join us at the 2025 Vancouver RSA Meeting to delve into the latest advancements and applications in RSA methodology.