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ISG Blockade Causes, Symptoms and Diagnostics

ISG Blockade Causes, Symptoms and Diagnostics

Blocking the iliac sacral joint causes uncomfortable pain in the back and movement restrictions above the buttocks. Seven out of every ten people experience a so-called ISG blockade at least once in their lives. How does an ISG blockade occur? What prophylactic measures can be taken? And how can an ISG blockade be solved? More about this in the following article.

The task of the iliac sacral joint

The iliac sacral joints, which are surrounded by many ligaments and muscles, establish the connection between the pelvis and the spine, and form the interface of the transmission of force between the lower and the upper body. Consequently, a blockage has an immediate effect on the mobility of the back and legs appear. The iliosacral joints are stiff and restricted in their mobility due to muscles and ligaments, only a back-and-forth, a so-called notation, is possible. Muscle tensions are typical, which lead to an ISG blockade. Pain develops which worsens as a preservation is taken, whereby the tensions are increasingly hardened and the pain intensified and further maladjustments are favored. The blockage can occur irrespective of the age, namely, in the case of bending or rotation of the trunk; Women and men are equally affected. Long sitting and physical stress also contribute to an ISG blockade. Radiating pain, often in the back and knees occur.

How does an ISG blockade occur?

When asked how an ISG blockade came, Hippocrates already had an answer to this question: ” What is being used, what is left unused, culminates  Our modern and low-activity lifestyle is responsible for the fact that our metabolism falls asleep and that muscles and ligaments are not used as they should and the fascia stick together.

Among the most common causes of muscular-fascial tensions are, among other things:

  • Imbalances, for example in the case of a leg length difference
  • Misuse or overload, such as overweight, heavy lifting, improper sitting
  • Pregnancy: the hormonal changes and the increase in the size of the abdomen exert pressure on the pelvic pressure, which leads to the loosening of the ligament apparatus, which can cause an ISG syndrome

The following causes are more rare:

  • Bone fractures / fall on the buttocks
  • tumors
  • infections
  • nerve damage
  • hip disorders
  • ankylosing spondylitis

Symptoms and diagnostics in an ISG blockade

Characteristic of a blockade at the ISG are:

  • “Low back”
  • one-sided Schmwerz
  • radiating pain

The origin of the pain is usually localized above the buttocks or protruding from the lateral pelvis as well as the inguinal region and can radiate into the thigh back as well as into the knee.

In a detailed history interview, which identifies the discomforts that occur and whether the pain radiates, a physical examination, in which clinical, orthopedic tests are performed, can reveal whether an ISG blockade is present.

The following investigations include:

  • Test for pressure pain
  • Provocation test: certain movements, such as rotational movements of the legs and hip, can cause pain in the ISG
  • “Mennel” sign: While the leg to be examined is stretched in the supine position, the other leg is simultaneously angled
  • 3-phase test : This examination takes place in abdomen position. A stretched leg is pulled up, the other leg remains lying. At the same time, the treating physician fixes with the hands, the arms of the movement are placed in three different places: pelvis, sacrum, lumbar spine


In addition to medicinal treatment by means of anti-inflammatory painkillers and heat treatment, physiotherapy (maneuvering, osteopathy) is used – with certain handles an action of the joint is exerted on the joint and the blockage in the ISG joint is remedied. Also in physiotherapy techniques are learned to counteract an ISG blockade and to bring the joint into the correct position. In rare cases, if symptoms persist for a long time and the conservative therapy – pain therapy and physiotherapy – are unsuccessful, surgery is considered.

How to prevent an ISG blockade?

An ISG blockade and other back pain can be prevented in the future if the following recommendations are made by health experts:

  • regular training of the trunk muscles
  • less sitting
  • more movement into everyday life
  • perform regular stretching exercises, especially on body regions, where muscular-fascial tension may frequently occur


Scientifically Proven: AGE-RELATED MACULAR DEGENERATION: Causes, Signs and Treatment

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