Nursemaid's elbow is a common injury in children where the radius bone of the forearm slips out of the elbow joint. This usually occurs when a child's arm is pulled or jerked suddenly, or if the child falls on their outstretched arm. The condition can be very painful and can cause the child to lose the ability to use their arm.

The procedure to treat nursemaid's elbow is called a reduction. This involves gently manipulating the radius bone back into the elbow joint. This procedure can be performed by a healthcare professional or by a trained caregiver under the guidance of a healthcare professional.

The steps of the procedure are as follows:

1. The child is placed in a comfortable position, typically sitting on a parent's lap or lying down.

2. The healthcare professional or trained caregiver will hold the child's arm and elbow with one hand, and use the other hand to gently rotate the forearm into a palm-up position.

3. While still holding the arm and elbow, the healthcare professional or trained caregiver will gently apply pressure to the radial head in the direction of the elbow joint.

4. A popping or clicking sound may be heard as the radius bone moves back into place.

5. The child's arm will then be checked to ensure that it is functioning properly and there is no pain or discomfort.