A 2017 Cochrane review concluded that there is low quality evidence favoring corticosteroid injections at one month when compared to placebo or no intervention (David, 2017
). A 2012 study compared PRP (platelet rich plasma) to corticosteroid injection in 60 patients that failed conservative therapy and showed decreased VAS scores and improved function in both groups at 3 weeks and 6 months. Both of these methods had comparable results (Aksahin, 2012
). One trial with long term ultrasound follow-up showed a decrease in plantar fascia thickness and heel pain after 1 month and 6 months following a corticosteroid injection (Genc, 2005
) and another showed relief at 6 months (Kalaci, 2010
). One randomized double blind controlled trial with 82 patients showed no difference at one and two months (Abdihakin, 2012
). In several studies, ultrasound guidance was not superior to palpation guided injections (Kane, 2001
; Gill, 1996
). It has been shown to be a relatively safe procedure, but there was plantar fascia rupture in 2/699 patients where adverse reactions were reported (David, 2017).