What is Posterior Tibial Tendon Dysfunction?
PTTD is a condition where the tendon on the inside of your ankle weakens, causing arch collapse, ankle pain, and flatfoot. It typically affects women over 40 and athletes.
What is Posterior Tibial Tendon Dysfunction?
Posterior tibial tendon dysfunction (PTTD) is a condition where the tendon that runs along the inside of your ankle and foot becomes inflamed, degenerates, or weakens. This tendon—the posterior tibial tendon (PTT)—plays a crucial role in supporting your arch and enabling proper foot mechanics. When it weakens, it can’t support the arch properly, leading to flatfoot development, inner ankle pain, swelling, and difficulty walking or standing for long periods.
PTTD typically affects women over 40, people with flat feet, athletes who run or do high-impact sports, those who’ve had previous ankle injuries, and people who are overweight. Early signs include pain along the inside of your ankle or foot, swelling around the medial malleolus, pain that worsens with activity, and a flattening of your arch.
If you’re experiencing these symptoms, see a healthcare provider. Early treatment—often starting with rest, ice, physical therapy, and orthotics—works much better than waiting until the condition progresses.
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This content is for informational purposes and is not medical advice. Consult a healthcare provider for diagnosis and treatment.