Adult Acquired Flatfoot Treatment in Twin Falls, ID

If your arch has gradually collapsed, your foot feels flatter than it used to, or you are experiencing pain along the inside of your ankle and foot, you may be dealing with adult acquired flatfoot. At Idaho Foot & Ankle, we diagnose and treat adult acquired flatfoot for patients throughout Twin Falls, the Magic Valley, and surrounding Idaho communities.

Adult acquired flatfoot is more than simply having “flat feet.” This condition often develops over time due to tendon damage, joint instability, arthritis, or structural changes in the foot and ankle. Without treatment, the condition can worsen and lead to chronic pain, difficulty walking, ankle instability, and progressive deformity.

What Is Adult Acquired Flatfoot?

Adult acquired flatfoot, sometimes called posterior tibial tendon dysfunction (PTTD), occurs when the arch of the foot gradually collapses during adulthood. As the supporting tendon and ligaments weaken, the foot begins to flatten and roll inward.

Many patients first notice pain and swelling on the inside of the ankle before realizing their arch has changed shape. Over time, the condition may cause instability, difficulty standing for long periods, and pain throughout the foot and ankle.

Common Symptoms of Adult Acquired Flatfoot

• Pain along the inside of the foot or ankle
• Flattening of the arch
• Swelling near the ankle
• Foot fatigue or weakness
• Difficulty standing or walking for long periods
• Foot rolling inward while walking
• Heel pain or arch pain
• Progressive deformity of the foot
• Ankle instability

Some patients also experience ongoing heel pain or plantar fasciitis symptoms as changes in foot structure place extra strain on the arch and heel.

What Causes Adult Acquired Flatfoot?

Adult acquired flatfoot most commonly develops when the posterior tibial tendon becomes inflamed, stretched, or torn over time. This tendon plays a major role in supporting the arch and stabilizing the foot while walking.

Several factors may increase your risk, including:

• Tendon injury or degeneration
• Obesity
• Diabetes
• Arthritis
• Previous ankle injuries
• Flat feet during childhood
• High-impact activity
• Overuse or repetitive strain
• Age-related tendon weakening

Patients with ongoing ankle instability may also benefit from learning about ankle sprain treatment and long-term ankle support options.

Can Adult Acquired Flatfoot Get Worse?

Yes. Adult acquired flatfoot is usually progressive, meaning the condition often worsens over time if left untreated. Early stages may involve mild pain and swelling, while more advanced stages can lead to severe arch collapse, arthritis, rigid deformity, and chronic ankle pain.

The earlier the condition is diagnosed, the more options are available to slow progression and reduce long-term damage.

How Idaho Foot & Ankle Diagnoses Flatfoot

Dr. Wettstein performs a comprehensive evaluation of your foot structure, walking pattern, tendon function, and ankle stability. Imaging may be recommended to evaluate tendon damage, joint alignment, arthritis, or structural collapse.

Because flatfoot can affect the entire mechanics of the foot and ankle, identifying the stage and severity of the condition is important when building an effective treatment plan.

Treatment Options for Adult Acquired Flatfoot

Treatment depends on the severity of the condition and how much tendon damage or structural collapse has occurred. Your treatment plan may include:

• Supportive footwear recommendations
• Activity modification
• Anti-inflammatory treatment
• Ankle bracing or immobilization
• Physical therapy
• Stretching exercises
• Custom orthotics
• Advanced surgical treatment when necessary

Many patients benefit significantly from custom orthotics designed to improve arch support, reduce strain on the tendon, and improve foot alignment.

Can Orthotics Help Flatfoot?

Yes. Proper arch support can reduce stress on damaged tendons and help improve foot mechanics during walking and standing. Custom orthotics are often an important part of treatment, especially in the earlier stages of adult acquired flatfoot.

Patients who spend long hours on their feet may also benefit from reviewing our recommendations for supportive footwear and athletic shoes.

When Should You See a Podiatrist?

You should schedule an evaluation if you notice progressive flattening of the arch, ankle pain, swelling, instability, or difficulty walking comfortably. The earlier treatment begins, the better the chance of preventing long-term structural damage.

Ignoring flatfoot symptoms can eventually lead to worsening deformity, arthritis, and chronic pain that becomes more difficult to manage conservatively.

Adult Acquired Flatfoot Treatment in Twin Falls and the Magic Valley

At Idaho Foot & Ankle, we help patients throughout Twin Falls and the Magic Valley find relief from adult acquired flatfoot with personalized treatment plans focused on reducing pain, improving stability, and protecting long-term foot health.

Make an Appointment Today

Stop Letting Flatfoot Pain Limit Your Mobility — Talk to a Twin Falls Foot & Ankle Specialist

Adult acquired flatfoot can gradually change the way you walk, stand, and move, often causing increasing pain and instability over time. Board-certified podiatrist Dr. Matt Wettstein helps patients throughout Twin Falls and the Magic Valley diagnose and treat flatfoot conditions before they progress into more serious structural problems.

Whether your symptoms are mild arch fatigue or advanced foot and ankle instability, Idaho Foot & Ankle offers personalized care designed to improve support, reduce pain, and protect long-term mobility. Depending on your condition, treatment may include supportive footwear, bracing, physical therapy, or custom orthotics designed specifically for your foot structure.

Call our Twin Falls office at 208.731.6321 or request an appointment online. You can also read patient reviews and get directions on Google.