“…Intra-articular injection with platelet-rich plasma (PRP) is an emerging non-operative treatment option for hip osteoarthritis (OA), which is estimated to cause symptomatic disease in one in four people by age 85 years. 1 While there have been multiple studies examining the potential of PRP to improve hip pain and function, 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 it is difficult to make conclusions about its efficacy with the available evidence for several important reasons. Although comparisons of placebo (saline solution) with PRP have been made indirectly via network meta-analysis, 9 there are limitations to this type of study.…”