## Core Concept
Skeletal traction involves applying a direct pulling force to a bone to treat fractures, correct deformities, or relieve pain. This is achieved through various devices inserted into the bone.

## Why the Correct Answer is Right
The correct answer involves identifying which of the listed options are used for skeletal traction.
- **K-wire (Kirschner wire)**: A thin, rigid wire used in orthopedic surgery for skeletal traction or fixation.
- **Steinmann's pin**: A type of pin used for skeletal traction and fixation, especially in orthopedic surgery.
- **Denham pin**: Another term for a type of skeletal pin used in orthopedics.

## Why Each Wrong Option is Incorrect
- **Option B: Pavlik harness**: This is used for developmental dysplasia of the hip in infants, not skeletal traction in the traditional sense of applying force to a bone for fractures or deformities.
- **Option E: Rush pin**: This is an intramedullary nail used for fracture fixation, not typically classified under skeletal traction.

## Clinical Pearl / High-Yield Fact
A key point to remember is that skeletal traction is often used temporarily to stabilize fractures or to correct bone alignment before definitive surgery. Devices like **K-wires**, **Steinmann's pins**, and **Denham pins** are directly inserted into the bone to achieve this.

## Correct Answer: D.