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Waddell's Triad is a medical term that refers to the three typical injuries sustained by a pedestrian, usually a child, struck by a vehicle. The triad consists of injuries to the head, torso, and lower extremities.

Overview

Waddell's Triad was first described by Dr. Arthur Waddell in the 1960s. It is a pattern of injury seen in pedestrians, especially children, who are struck by motor vehicles. The triad includes:

1. Injury to the side of the body that was impacted by the vehicle
2. Injury to the head or torso from the body being thrown and striking the ground or another object
3. Injury to the lower extremities as the body is projected over the vehicle

Injuries

Injury to the side of the body

The first injury in Waddell's Triad is usually to the side of the body that was struck by the vehicle. This can result in fractures to the pelvis or lower extremities, as well as internal injuries to the organs in the abdomen or chest.

Injury to the head or torso

The second injury in the triad is to the head or torso. This can occur when the body is thrown and strikes the ground or another object. This can result in traumatic brain injury, spinal cord injury, or fractures to the skull, spine, ribs, or sternum.

Injury to the lower extremities

The third injury in the triad is to the lower extremities as the body is projected over the vehicle. This can result in fractures to the legs or feet, or injuries to the joints, ligaments, or tendons.

Treatment

Treatment for Waddell's Triad depends on the severity and location of the injuries. It may include surgery to repair fractures or internal injuries, physical therapy to restore function and mobility, and psychological counseling to help cope with the trauma of the accident.

See also

• Trauma (medicine)
• Pedestrian safety through vehicle design
• Traffic collision

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