Synonyms in a broader sense
Sacroiliac joint hypomobility, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block, sacroiliac joint block
Definition
A blockage is a reversible deviation from normal joint function in which joint-play is restricted or eliminated within the normal, physiological range of motion of a joint. Causes of joint blockage are functional or structural changes in the joint surfaces or soft tissue mantle. One or more movement directions of a joint or movement segment can be affected. A characteristic feature of the blockage is that it always has a free direction of movement.
Anatomy
- The sacroiliac joint is one of the most therapy-intensive areas of the body affected by pain
- 60-80% of the population suffers once in a lifetime from ISG blockage and thus from back pain.
- A blockage of the ISG can occur at any age and affects men and women equally.
- The sacroiliac joint is the point at which the uniaxial organ of motion, the spine, is redirected to the biaxial organ of motion, the legs. These transition zones are particularly susceptible to functional disorders.
- Other transition zones where blockages frequently occur are the upper cervical joints, the cervicothoracic transition (transition from the cervical to the thoracic spine) and the thoracolumbar transition (transition from the thoracic to the lumbar spine).
Causes
As mentioned in the beginning, the ISG has a physiological joint play like any other joint. This is the sum of the passive movement possibilities a joint can perform and is therefore a basic requirement for normal, healthy joint function. If this joint play is reduced, a blockage exists.
In relation to the sacroiliac joint, the cause of a blockage is usually a lifting trauma or, classically, a kick in the nullity, for example when a step is overlooked. Blocking of the ISG often occurs as an accompanying phenomenon in other orthopedic diseases, such as after hip surgery or in the context of spinal diseases. The main symptom is back pain, which is often described as low-lumbar and usually occurs on one side.
An increase in pain after prolonged sitting and an improvement in symptoms through movement and heat applications are common. Pain often radiates to the buttocks, groin and lumbar spine. A combination with sensations such as tingling and formication is also observed.
Knee pain should also make the doctor think about the differential diagnostic possibility of ISG blockage. The symptoms of ISG blockage belong to the group of pseudoradicular pain syndromes. In principle, radicular pain syndromes can be distinguished from pseudoradicular pain syndromes.
Pseudoradicular pain is pain that is not due to root irritation. Classically, patients report back pain that radiates into the leg, which can affect the front as well as the back of the leg, but usually ends in the knee area. Often the back of the knee is left out of the pain.
Sensitivity disorders in the form of tingling and formication can also occur.Since the spinal nerve is not affected in pseudoradicular pain syndromes, the sensitivity disorders cannot be assigned to any dermatomes (the skin area supplied by a spinal nerve). Radicular pain, such as that caused by a herniated disc, causes irritation of the nerve root. Accordingly, the pain and sensitivity disorders radiating into the extremity are dermatome-related.
The second main symptom besides back pain is groin pain. From a functional point of view, the doctor should examine the following body regions when groin pain occurs: The ISG can cause pain from various causes.
- The ISG
- The hip joint
- The lumbar spine
- The thoracolumbar transition (exercise of the thoracic to lumbar spine)
