Flatfoot (Pes Planovalgus) – Causes, Symptoms & Treatment

What is Flatfoot?

Flatfoot (Pes Planovalgus) is a foot deformity in which the longitudinal arch of the foot is lowered (flatfoot) and the heel tilts inward (valgus position). This combination leads to an altered weight distribution on the foot, which can cause pain, improper loading, and joint wear over time.

This condition can occur in both children and adults and varies in severity. In the early stages, flatfoot often causes no significant discomfort, but as the deformity progresses, it may lead to pain in the feet, knees, hips, or back due to incorrect posture and strain.

Causes

Flatfoot can be congenital (present at birth) or develop over time due to various factors. Common causes include:

  • Genetic predisposition – a family history of flatfoot increases the likelihood
  • Weak connective tissue – common in women and people with hypermobile joints
  • Incorrect footwear & improper loading – prolonged use of unsuitable shoes
  • Obesity – increases strain on the foot arch
  • Weak foot and ankle muscles – due to inactivity or lack of foot-strengthening exercises
  • Medical conditions such as rheumatoid arthritis or diabetes – may weaken foot structures

People who spend a lot of time standing or walking and athletes with high-impact activities are particularly at risk.

Symptoms

Mild flatfoot may not cause immediate symptoms. However, as the condition progresses, the following symptoms may appear:

 Foot pain after prolonged walking or standing – especially on the sole and inner side of the foot
 Heel pain or Achilles tendon issues – due to altered foot mechanics
 Knee, hip, or back pain – caused by misalignment affecting the entire posture
 Quick foot fatigue – difficulty walking long distances
 Swelling or pressure points – particularly around the arch of the foot

In severe cases, flatfoot can develop into a rigid flatfoot, where the arch collapses completely, leading to restricted mobility.

Diagnosis

Diagnosis is made through clinical examination and imaging tests:

  • Visual assessment of the foot – examining posture while standing and walking
  • Foot pressure analysis (pedobarography) – evaluates weight distribution on the foot sole
  • X-rays – assess bone alignment and arch structure
  • Gait analysis – helps identify improper loading patterns and develop a personalized treatment plan

Treatment Options for Flatfoot

Conservative (Non-Surgical) Treatment

In most cases, flatfoot can be treated without surgery, especially when diagnosed early. The treatment focuses on strengthening foot muscles, optimizing weight distribution, and relieving pain.

 Custom orthotics & supportive shoes – provide arch support and improve weight distribution
 Physical therapy & foot strengthening exercises – stabilize the foot and prevent further collapse
 Stretching exercises for calf and foot muscles – improve flexibility and reduce strain
 Walking barefoot on soft surfaces – enhances natural foot strength
 Weight management – reduces excessive stress on the feet

If pain is present, anti-inflammatory medications (NSAIDs) or physical therapy (e.g., heat or cold applications) can help relieve discomfort.

Surgical Treatment for Flatfoot

Surgery is considered when severe pain or advanced deformity occurs and conservative treatments are no longer effective.

Common Surgical Procedures:

🔹 Joint fusion (Arthrodesis) – stabilizes the foot in severe cases
🔹 Osteotomy (bone realignment surgery) – restores the natural arch
🔹 Tendon reconstruction – particularly for cases involving posterior tibial tendon dysfunction (PTTD)
🔹 Implantation of a corrective device – a minimally invasive method to realign the foot structure

Post-Surgical Recovery & Rehabilitation:

  • Immobilization for 4–6 weeks with a special boot or cast
  • Physical therapy to restore mobility and strength

Full recovery typically takes 3–6 months, depending on the procedure

What Happens If Flatfoot Is Left Untreated?

Without treatment, flatfoot can worsen over time, leading to:

 Increasing pain & mobility issues – affecting both the feet and the joints in the legs and back
 Progression to rigid flatfoot – complete collapse of the arch, reducing mobility
 Osteoarthritis in the ankle or foot joints – due to long-term improper loading
 Higher risk of tendonitis & heel pain – including Achilles tendonitis and plantar fasciitis

Early intervention can prevent these complications and improve foot function in the long run.

Conclusion

Flatfoot is a common foot deformity that can often be effectively managed with custom orthotics, physical therapy, and foot-strengthening exercises. In severe cases, surgery may be necessary to restore foot structure and prevent long-term damage.

Are you experiencing discomfort from flatfoot or looking for expert advice? Contact me for a consultation and a personalized treatment plan!

Causes

Flatfoot can be congenital (present at birth) or develop over time due to various factors. Common causes include:

  • Genetic predisposition – a family history of flatfoot increases the likelihood
  • Weak connective tissue – common in women and people with hypermobile joints
  • Incorrect footwear & improper loading – prolonged use of unsuitable shoes
  • Obesity – increases strain on the foot arch
  • Weak foot and ankle muscles – due to inactivity or lack of foot-strengthening exercises
  • Medical conditions such as rheumatoid arthritis or diabetes – may weaken foot structures

People who spend a lot of time standing or walking and athletes with high-impact activities are particularly at risk.

Symptoms

Mild flatfoot may not cause immediate symptoms. However, as the condition progresses, the following symptoms may appear:

 Foot pain after prolonged walking or standing – especially on the sole and inner side of the foot
 Heel pain or Achilles tendon issues – due to altered foot mechanics
 Knee, hip, or back pain – caused by misalignment affecting the entire posture
 Quick foot fatigue – difficulty walking long distances
 Swelling or pressure points – particularly around the arch of the foot

In severe cases, flatfoot can develop into a rigid flatfoot, where the arch collapses completely, leading to restricted mobility.

Diagnosis

Diagnosis is made through clinical examination and imaging tests:

  • Visual assessment of the foot – examining posture while standing and walking
  • Foot pressure analysis (pedobarography) – evaluates weight distribution on the foot sole
  • X-rays – assess bone alignment and arch structure
  • Gait analysis – helps identify improper loading patterns and develop a personalized treatment plan

Treatment Options for Flatfoot

Conservative (Non-Surgical) Treatment

In most cases, flatfoot can be treated without surgery, especially when diagnosed early. The treatment focuses on strengthening foot muscles, optimizing weight distribution, and relieving pain.

 Custom orthotics & supportive shoes – provide arch support and improve weight distribution
 Physical therapy & foot strengthening exercises – stabilize the foot and prevent further collapse
 Stretching exercises for calf and foot muscles – improve flexibility and reduce strain
 Walking barefoot on soft surfaces – enhances natural foot strength
 Weight management – reduces excessive stress on the feet

If pain is present, anti-inflammatory medications (NSAIDs) or physical therapy (e.g., heat or cold applications) can help relieve discomfort.

 

Surgical Treatment for Flatfoot

Surgery is considered when severe pain or advanced deformity occurs and conservative treatments are no longer effective.

Common Surgical Procedures:

🔹 Joint fusion (Arthrodesis) – stabilizes the foot in severe cases
🔹 Osteotomy (bone realignment surgery) – restores the natural arch
🔹 Tendon reconstruction – particularly for cases involving posterior tibial tendon dysfunction (PTTD)
🔹 Implantation of a corrective device – a minimally invasive method to realign the foot structure

Post-Surgical Recovery & Rehabilitation:

  • Immobilization for 4–6 weeks with a special boot or cast
  • Physical therapy to restore mobility and strength

Full recovery typically takes 3–6 months, depending on the procedure

What Happens If Flatfoot Is Left Untreated?

Without treatment, flatfoot can worsen over time, leading to:

 Increasing pain & mobility issues – affecting both the feet and the joints in the legs and back
 Progression to rigid flatfoot – complete collapse of the arch, reducing mobility
 Osteoarthritis in the ankle or foot joints – due to long-term improper loading
 Higher risk of tendonitis & heel pain – including Achilles tendonitis and plantar fasciitis

Early intervention can prevent these complications and improve foot function in the long run.

Conclusion

Flatfoot is a common foot deformity that can often be effectively managed with custom orthotics, physical therapy, and foot-strengthening exercises. In severe cases, surgery may be necessary to restore foot structure and prevent long-term damage.

Are you experiencing discomfort from flatfoot or looking for expert advice? Contact me for a consultation and a personalized treatment plan!