Ankylosing spondylitis is a chronic inflammatory disorder that affects the joints between the vertebrae of the spine. Diagnosis of ankylosing spondylitis is usually based on physical examination and x-rays, but there are a few specific physical tests that are used to help diagnose the condition.
The Schober Test
The Schober test is a physical examination test used to measure the flexibility of the lower back. To perform the test, the patient stands with their back to the examiner and places their hands on their hips. The examiner then measures the distance from the patient’s fingertips to a fixed point on the lower back. Ankylosing spondylitis can cause stiffness of the spine, which can be measured with this test.
The Bent-Over Test
The bent-over test is another physical examination test used to measure the flexibility of the lower back. The patient stands with their feet shoulder-width apart and bends over until their hands are touching the ground. The examiner then measures the distance from the patient’s fingertips to a fixed point on the lower back. As with the Schober test, ankylosing spondylitis can cause stiffness of the spine, which can be measured with this test.
The Chest Expansion Test
The chest expansion test is a physical examination test used to measure the flexibility of the rib cage. The patient stands with their arms outstretched and the examiner measures the distance between the patient’s hands. Ankylosing spondylitis can cause stiffness of the rib cage, which can be measured with this test.
The Spinal Flexibility Test
The spinal flexibility test is a physical examination test used to measure the flexibility of the spine. The patient stands with their arms outstretched and the examiner measures the distance between the patient’s hands while they are bending forward. Ankylosing spondylitis can cause stiffness of the spine, which can be measured with this test.
These tests are used in combination with other tests to diagnose ankylosing spondylitis. It is important to note that these tests are not definitive and can provide false positive or false negative results. If you suspect you may have ankylosing spondylitis, it is best to speak to your doctor and get a professional diagnosis.