The typical deformity in CTEV is ?
**Core Concept**
Congenital Talipes Equinovarus (CTEV), also known as clubfoot, is a common congenital deformity of the foot and ankle. It is characterized by a complex interplay of muscle imbalances, bone deformities, and soft tissue abnormalities.
**Why the Correct Answer is Right**
The typical deformity in CTEV involves a combination of equinus (plantarflexion of the foot), varus (inversion of the heel), and supination of the forefoot. This results in a characteristic "rocker-bottom" appearance of the foot. The deformity is thought to be caused by an imbalance between the muscles and tendons of the foot and ankle, which leads to an abnormal positioning of the bones.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because CTEV does not typically involve a dorsiflexion deformity, which is more characteristic of other conditions such as cerebral palsy.
**Option B:** This option is incorrect because while CTEV does involve a component of varus deformity, it is not the primary or typical deformity associated with this condition.
**Option C:** This option is incorrect because CTEV does not typically involve a valgus deformity, which is more characteristic of other conditions such as tibial torsion.
**Option D:** This option is incorrect because CTEV does not typically involve a calcaneovalgus deformity, which is more characteristic of other conditions such as congenital vertical talus.
**Clinical Pearl / High-Yield Fact**
CTEV is often associated with other congenital anomalies, such as spina bifida and heart defects, and it is essential to perform a thorough physical examination and imaging studies to rule out these associated conditions.
**Correct Answer: C. Equinus, varus, and supination of the forefoot.**