Jimenez-Perez AE, et al. - A comparative analysis was carried out of the effectiveness and imaging changes (US and MRI) between platelet-rich plasma (PRP) and corticoids injections for the treatment of chronic plantar fasciitis, using clinical results evaluated by the visual analogue scale (VAS), the AOFAS clinical rating system and the modified Roles and Maudsley score, and using imaging results (US and MRI). Data demonstrated that 2 injections of PRP were more efficient and long-lasting than corticoid injections in the treatment of chronic plantar fasciitis.