Collapsed foot arch with the toes pointing out

Posterior Tibial Tendon Dysfunction (PTTD)

Posterior Tibial Tendon Dysfunction (PTTD)   What is Posterior Tibial Tendon Dysfunction (PTTD)? Posterior tibial tendon dysfunction (PTTD) occurs when the tibialis posterior muscle is not functioning properly. This muscle originates on the inside of the lower leg (tibia), travels…