X-ray technologists' reproducibility from automated measurements of the medial tibiofemoral joint space width in knee osteoarthritis for a multicenter, multinational clinical trial.

Abstract

Between-continent precision of JSW measurements from all accepted pairs of semiflexed views was excellent to very good and similar to the high technical quality achieved in the authors' original report. The value of training incorporating both test/retest radiographs and film QCC is essential for the high technical quality required for multinational clinical trials.