Nienke is an orthopaedic surgeon at the Department of Orthopedic Surgery at the University Medical Center (UMC) Utrecht, The Netherlands. In 2018, she finished her PhD research (Joint Preservation of Unicompartmental Knee Osteoarthritis). In 2018 and 2019, she did a knee fellowship under supervision of Prof Daniel Saris and Roel Custers at the UMC Utrecht. Her primary interest is knee surgery, especially joint preservation treatments (cartilage repair, osteotomies and knee joint distraction), but also knee (revision) arthroplasty. She is working as a knee surgeon at the Mobility Clinic, which is a multidisciplinary clinic, with a special expertise in young patients with complex knee pathology. She is collaborating in several research trials (basic and clinical research), with a main focus on knee joint preserving treatments and regenerative medicine. The Department of Orthopedic Surgery at the UMC Utrecht has a long-lasting fruitful research collaboration with the Department of Rheumatology of the UMC Utrecht.