Background Recently, Platelet-Rich Plasma (PRP) therapy has become to be used for Knee Osteoarthritis (KOA), and a consensus was published by ESSKA ORBIT. Patient-Reported Outcomes Measures (PROMs) are often used to determine the efficacy of treatment for KOA, but some problems have been pointed out, such as the fact that PROMs are easily influenced by the condition of the patient on the day of the outpatient visit. However, recent advances in wearable devices have made it possible to objectively quantify and track the amount of daily activity. Although the evaluation of daily activity volume may lead to a new way to determine the effectiveness of treatment, there have been no reports comparing the relationship between daily activity volume and changes in conventional PROMs.
NAKAJIMA et al. (Thu,) studied this question.