Overview Adult-Acquired Flat Foot Deformity (AAFFD) is most commonly caused by a progressive degeneration of the tendon (tibialis posterior) that supports the arch of the foot. As the tendon ages or is subjected to repetitive trauma, it st…

Overview Posterior tibial tendon insufficiency (also called posterior tibial tendon dysfunction or adult acquired flatfoot) has been named literally after failure of the posterior tibial tendon. However, the condition is caused not only by…

Overview The Achilles tendon is the tendon that attaches the gastrocnemius (calf muscles) to the calcaneus bone (back of the heel). It is important in activities that involve plantar flexion of the ankle (pushing down with the foot or doin…