**Core Concept**
The Pavlik harness is a device used in the treatment of developmental dysplasia of the hip (DDH) in infants. It is a type of orthotic device that helps to maintain the hip in a position of flexion and abduction, promoting proper development and alignment of the hip joint.

**Why the Correct Answer is Right**
The Pavlik harness works by positioning the hip in a way that helps to prevent the femoral head from subluxating or dislocating. This is achieved by maintaining the hip in a position of flexion, where the femoral head is in the acetabulum, and abduction, where the femur is angled outward. This helps to prevent the femoral head from slipping out of the acetabulum, allowing the hip joint to develop normally. The Pavlik harness is typically used in infants between 0-6 months of age, as this is the critical period for hip development.

**Why Each Wrong Option is Incorrect**
**Option A:** The Pavlik harness is not typically used for treatment of clubfoot (talipes equinovarus). While orthotic devices are used to treat clubfoot, the Pavlik harness is specifically designed for DDH.
**Option B:** The Pavlik harness is not typically used for treatment of scoliosis. Scoliosis is a curvature of the spine, and treatment typically involves bracing or surgery.
**Option C:** The Pavlik harness is not typically used for treatment of hip fractures. Hip fractures are treated with surgery or immobilization in a cast, not with a Pavlik harness.

**Clinical Pearl / High-Yield Fact**
It's essential to diagnose and treat DDH early, as untreated DDH can lead to long-term complications such as osteoarthritis and hip pain.

**Correct Answer: C. Developmental dysplasia of the hip (DDH).**