The orthopedic research group of Maxima Medical Center has published a new study by PhD candidate and orthopedic resident Jaap Tolk MD.
Tolk JJ, Janssen RPA, Prinsen CAC, Latijnhouwers DAJM, van der Steen MC, Bierma-Zeinstra SMA, Reijman M. The OARSI core set of performance-based measures for knee osteoarthritis is reliable but not valid and responsive. Knee Surg Sports Traumatol Arthrosc. 2017 Nov 11. doi: 10.1007/s00167-017-4789-y. [Epub ahead of print] PMID: 29128879