X-ray image of the lumbar spine in lateral projection. A typical image of a bamboo stick; ossification of joints and ligaments.
Risk factors
HLA-B27, male
Classifications and references
MKN-10
M45, juvenile ankylosing spondylarthritis M08.1
MeSH ID
D013167
OMIM
106300
MedlinePlus
000420
Medscape
332945
Ankylosing spondylarthritis (also morbus Bechtěrev or spondylitis ankylosans) is a spondylarthritis, a group of inflammatory rheumatic diseases affecting connection on the spine (intervertebral, costovertebral, SI joint, discs and ligaments of the spine, sometimes root or peripheral joints). It leads to the gradual ossification of the joint capsule and ligaments and thus to the ankylosis of segments up to the entire spine (it can stiffen in any position).
The disease begins at a young age (usually the 2nd-3rd decade). It is more common in men. The disease is linked to HLA-B27. The etiological agent has not been demonstrated. The role of intestinal microflora is considered.
Symptoms
The symptoms of the disease are divided into three groups: axial, peripheral and extra-articular symptoms.
Axial symptoms
The basic symptoms of the disease include inflammatory pain in the lower back - it arises on the basis of sacroiliitis, typically in the second half of the night and wakes the patient from sleep. It is accompanied by morning stiffness. Both pain and stiffness improve with warming up. The pain spreads to the higher areas of the spine (except for the cervical spine) - spondylitis is a treasure. Axial symptoms also include arthritis of the shoulder and hip joints.
Peripheral symptoms
Asymmetric oligoarthritis most often develops with a preference on the lower limbs. Dactylitis (so-called sausage finger ) can also occur - affecting the interphalangeal joints of one finger and tendon.
During the examination, we focus on the sacroiliac joints, the development of the spine in three planes and the expansion of the chest.
Mennel's maneuver - We push the patient's hip bones. The test is positive if the patient feels pain on the injured side.
Schober test - Shows the development of the lumbar spine.
Forestier flèche - This is the distance of the occiput to the perpendicular wall. It should be a maximum of 2 cm.
Schober testlateral flexion
chest expansion - at least 5 cm
Imaging methods
X-rays are the first manifestation of sacroiliitis. Furthermore, syndesmophytes and ossification of tendon attachments arise, which leads to the fusion of vertebral bodies to the image of the so-called bamboo stick . Sacroileitis is often bilateral.
We distinguish 5 stages according to the location of changes.
Stadium
inflammatory changes
Stadium I
unilateral sakroiliitida
Stadium II
bilateral sacroiliitis
Stadium III
lumbar spine involvement
stadium IV
thoracic spine involvement
stadium V
cervical spine involvement
Demonstration of changes in the spine in Bechterew's disease. An image of a bamboo stick and thoracic hyperkyphosis caused by ossification of inflammatory tissues
Another important imaging method is magnetic resonance imaging, where a typical finding is the presence of effusion or swelling of the bone marrow.
Laboratory tests
In the laboratory finding we find an increase in sedimentation and CRP, normocytic normochromic anemia.
Treatment
The basis of treatment is regular, lifelong exercise, rehabilitation and physical therapy. Spa treatment is indicated for patients every year.
Pharmacological treatment includes:
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