Understanding the Gapping Test (Sacroiliac Joint) Assessment
To assess for **SI joint pathology** by applying an anterior distraction force to the anterior ligaments.
Watch How It's Done
How do I start?
Patient is supine.
What happens?
The examiner places their hands over the patient's **Anterior Superior Iliac Spines (ASIS)** and applies a firm, sustained **downward and outward (anterior distraction)** force to separate the anterior aspects of the pelvis.
In Plain English
What Does a Positive Result Mean?
Reproduction of the patient's **posterior pain** (in the SI joint or buttock).
Helpful Tip:
This maneuver stresses the anterior sacroiliac ligaments. It is one of the cluster tests for SI joint pain.
Safety First
This guide is to help you understand what happens in a clinic. Do not try to diagnose yourself. If you have severe pain, swelling, or cannot put weight on your leg, please visit an urgent care center or your doctor immediately.