Which test is used to provoke SI joint pain?

• A. Sacral Apex Pressure Test
• B. Spurling's Test
• C. Alar Ligament Instability Test
• D. Roos Test

Answer: (A)

Provoke SI joint pain by directly stressing the sacroiliac joints. The Sacral Apex Pressure Test does exactly that by applying targeted pressure to the sacral apex, which compresses the SI joints and can reproduce typical SI joint pain if pathology is present. The other tests assess different structures: Spurling's test targets cervical nerve roots and neck pathology, Alar Ligament Instability Test evaluates upper cervical stability, and the Roos Test screens for thoracic outlet/upper limb neurovascular compression. Since only the Sacral Apex Pressure Test directly stresses the SI joints to elicit the pain, it is the best choice for provoking SI joint pain.