
Johan Wilhelm Muskat, MD, PhD Student
Currently working as resident orthopedic doctor at Oslo University Hospital Ullevål and enrolled as PhD student at the University of Oslo.
Current ongoing projects:
- StableTouch – A prospective 2-year pilot trial of 4D CT and CT RSA of the Touch prosthesis for CMC arthritis.
- TWIST (Total Wrist Implant Stability Trial) – A provocative CT trial investigating the stability of total wrist arthroplasties after implantation.
- Registry study investigating total wrist arthroplasty survival in Norway; also investigator for CMC arthroplasty registry study.
Planned project collaboration with RSA CMC database with Aarhus.

Maaike de Bondt, MSc, PhD Student
Sint Maartenskliniek, Nijmegen, the Netherlands.
Regarding RSA, I am working on two projects using CT-RSA (V3MA). One that I presented during the iRSA meeting in Vancouver using tibial porcine cadaver data from our colleagues in Oslo. In the other project, I am using clinical follow-up data of (large) 3D-printed revision hip implants as a collaboration between Nijmegen and Leiden.

Jonathan Hugo Jürgens-Lahnstein, MD, PhD Student
Currently enrolled as PhD student at Aarhus University, Department of Orthopaedic Surgery, and affiliated with Aarhus University Hospital.
My research focuses on radiostereometric analysis (RSA), kinematics, and inducible displacement in knee arthroplasties.
Current ongoing project:
Biomechanical dysfunction of unicompartmental knee arthroplasties investigated with dynamic radiographic examinations — a prospective study comparing biomechanical function between highly satisfied and dissatisfied patients after unicompartmental knee replacement. The project employs dynamic RSA (AdoraRSA) to quantify implant movement and assess potential correlations between implant kinematics and patient satisfaction.
Collaborations:
Collaboration with Elise Laende, University of Waterloo, Canada.