Written by Dr. Subhajit Maji
Congenital Talipes Equinovarus (CTEV), commonly known as clubfoot, is one of the most frequently encountered congenital orthopaedic deformities affecting children worldwide. The condition is present at birth and involves abnormal positioning of the foot due to deformities involving bones, joints, muscles, tendons, and surrounding soft tissues.
In clubfoot, the foot appears twisted downward and inward. The affected foot may look smaller than normal, and the calf muscles on the involved side may also appear thinner. The condition can affect one foot (unilateral clubfoot) or both feet (bilateral clubfoot).
Although the appearance of clubfoot can initially cause significant concern among parents, modern orthopaedic treatment methods have dramatically improved outcomes. With early diagnosis and appropriate management, many children can achieve excellent foot function and lead active lives.
The condition affects approximately 1–2 children per 1000 live births globally and occurs more commonly in boys than girls. Bilateral involvement is seen in a significant proportion of cases.
Understanding Normal Foot Development
To understand clubfoot, it is helpful to first understand normal foot development. During fetal growth, the bones, muscles, tendons, and ligaments of the foot gradually develop and align into a position that allows efficient standing and walking after birth.
In children with CTEV, this normal developmental process is altered. Tight soft tissues and abnormal positioning of bones lead to the characteristic deformity seen at birth.
Components of Clubfoot Deformity
The classical clubfoot deformity consists of four major components remembered by orthopaedic surgeons using the acronym CAVE:
- Cavus – Increased arch of the foot caused by plantar flexion of the forefoot.
- Adductus – Inward deviation of the forefoot.
- Varus – Inward turning of the heel.
- Equinus – Downward pointing position of the ankle resulting in inability to place the foot flat on the ground.
These deformities occur simultaneously and create the classical appearance of clubfoot. The severity can vary significantly between children.
What Causes Clubfoot?
The exact cause of CTEV remains incompletely understood despite decades of research. Most experts believe that clubfoot develops due to a combination of genetic and environmental influences during fetal development.
Several factors may contribute:
- Positive family history of clubfoot
- Genetic susceptibility
- Abnormal fetal positioning
- Neuromuscular conditions
- Connective tissue abnormalities
- Certain syndromic associations
Clubfoot can occur as an isolated deformity or may occasionally be associated with conditions such as spina bifida, arthrogryposis, or neuromuscular disorders.
Importantly, parents should understand that clubfoot usually develops naturally during fetal growth and is generally not caused by anything done during pregnancy.
Clinical Features
Children with clubfoot may demonstrate:
- Foot turned inward and downward
- High medial longitudinal arch
- Small appearing foot size
- Reduced calf muscle bulk
- Tight Achilles tendon
- Heel positioned inward
- Limited ankle movement
The deformity is usually painless in infancy. However, untreated clubfoot can result in long-term disability.
What Happens If Clubfoot Is Left Untreated?
Without treatment, children may develop significant walking difficulties. Because the foot cannot achieve normal plantigrade alignment, abnormal weight bearing occurs.
Potential complications include:
- Walking on the outer border of the foot
- Pain during ambulation
- Callosity formation
- Skin breakdown
- Reduced mobility
- Difficulty wearing normal footwear
- Social and psychological challenges
- Progressive deformity over time
These complications emphasize the importance of early orthopaedic intervention.
Diagnosis of Clubfoot
Diagnosis is primarily clinical and often straightforward for experienced orthopaedic specialists.
Clubfoot may be identified:
- During antenatal ultrasound evaluation
- Immediately after birth
- During newborn examination
Orthopaedic assessment generally includes:
- Foot flexibility assessment
- Severity grading
- Examination for associated conditions
- Monitoring treatment progression
Two commonly used clinical scoring systems include:
- Pirani Score
- Dimeglio Classification
These scoring systems help quantify deformity severity and monitor treatment response over time.
Modern Treatment Principles
Management of clubfoot has evolved significantly over the years. Historically, extensive surgical releases were commonly performed. Modern orthopaedic management now emphasizes tissue-friendly correction methods.
The current gold standard treatment worldwide is the Ponseti Method.
Ponseti Method
Developed by Dr. Ignacio Ponseti, this method revolutionized clubfoot treatment and remains the preferred approach globally.
Treatment typically includes:
1. Serial Manipulation and Casting
Gentle manipulation gradually corrects deformity components in a specific sequence. Following manipulation, plaster casts are applied to maintain correction.
Casts are changed periodically, usually weekly, allowing progressive improvement.
2. Percutaneous Achilles Tenotomy
Many children require a small procedure to release persistent ankle equinus after casting correction.
The procedure is brief and significantly improves ankle dorsiflexion.
3. Bracing Phase
Bracing is essential to maintain correction and prevent recurrence.
Foot abduction braces are commonly prescribed after casting completion.
Brace compliance remains one of the strongest predictors of long-term success.
Recurrence of Clubfoot
Recurrence remains an important clinical challenge. Even after successful correction, recurrence can occur during growth years.
Common reasons include:
- Poor brace compliance
- Severe initial deformity
- Neuromuscular conditions
- Incomplete correction
Regular follow-up remains critical for early detection of recurrence.
Long-Term Outcomes
With early and appropriate treatment, outcomes are often excellent.
Many children achieve:
- Plantigrade foot position
- Pain-free walking
- Participation in sports
- Normal shoe wear
- Good functional mobility
- Improved quality of life
Long-term studies have demonstrated durable correction when treatment protocols are followed appropriately.
Common Questions Parents Ask
Can clubfoot correct naturally without treatment?
No. Clubfoot usually requires orthopaedic intervention.
Is surgery always necessary?
No. Most children improve successfully with Ponseti casting and bracing.
Can my child play sports?
Most children treated appropriately can participate fully in physical activities.
Can clubfoot return?
Recurrence may occur, emphasizing the importance of follow-up and brace compliance.
When should treatment begin?
Treatment generally begins early in infancy because earlier correction often produces better outcomes.
When Should Parents Consult an Orthopaedic Surgeon?
Parents should seek orthopaedic consultation if they notice:
- Inward turning of the foot
- Abnormal foot posture at birth
- Difficulty placing the foot flat
- Recurrence after previous treatment
- Walking abnormalities
Early intervention remains one of the most important factors influencing successful correction.
Modern orthopaedic treatment has transformed outcomes for children born with clubfoot. Early diagnosis, structured treatment, brace compliance, and long-term follow-up remain fundamental principles in achieving optimal results.