What Is an Adult Flatfoot?
The adult flatfoot deformity, also known as posterior tibial tendon dysfunction (PTTD), is a condition in which the posterior tibial tendon that runs along the inside of the ankle and foot becomes weakened or damaged. This can cause the arch of the foot to gradually flatten over time, leading to pain, weakness, and difficulty walking.
The posterior tibial tendon plays a crucial role in supporting the arch of the foot, and when it becomes weakened or damaged, the foot can no longer properly support the body's weight. This can cause the foot to roll inward, a condition known as overpronation, and can lead to the development of other foot problems such as bunions, hammertoes, and plantar fasciitis.
Adult flatfoot deformity can be caused by a variety of factors, including trauma or injury to the foot or ankle, genetics, inflammatory conditions such as various inflammatory arthritides, and certain medical conditions such as obesity or diabetes. It typically occurs in middle-aged or older adults.