What indicates successful treatment for radial head subluxation in a child?

Successful treatment for radial head subluxation in a child is indicated by the immediate use of the affected arm. This condition, often referred to as "nursemaid's elbow," occurs when the annular ligament slips over the radial head, causing pain and restricting movement.

Once the subluxation is reduced, a key indicator of successful treatment is the child's ability to use the arm without hesitation or pain. This reflects a return to normal functionality and confirms that the joint has been properly repositioned. In this scenario, if the child can immediately resume activities that involve the use of the arm, it suggests that they have regained full range of motion and that the treatment was effective.

While significant pain relief, normalization of X-ray findings, and absence of swelling may also suggest improvement, they do not directly indicate functionality. Pain can subside without full range of motion being restored, and X-rays may not always show immediate changes after reduction. Therefore, the ability to use the arm confidently and without discomfort is the most reliable sign of successful treatment in this case.