“…The use of advanced imaging before surgical repair of PTT dysfunction is still subject to discussion (Baca et al 2014): The use of MRI seems to be advantageous especially in early stages of the disease and unclear conditions, as MRI allows evaluation of the tarsal tunnel (Erickson et al 1990), the distal tendon insertion in case of accessory navicular bone (Kiter et al 1999), and secondary signs of PTT dysfunction such as tibial spurs, subtendinous bone edema, unroofing of the talus and tendon (sub-) luxation (Schweitzer and Karasick 2000). In addition, associated pathologies such as spring ligament (Yao et al 1999; Williams et al 2013) and sinus tarsi abnormalities are seen on MRI especially in advanced PTT dysfunction and could then be addressed during surgery (Balen and Helms 2001; Shibuya et al 2008).…”