Sciatica is a very troubling disease that causes numbness and throbbing pain extending from the buttocks to the legs and soles of the feet, and even weakness in severe cases . The most common cause is compression of the sciatic nerve in the lumbar spine or buttocks, causing the symptoms described above.
The cause of sciatic nerve compression in the lumbar spine is often heard disc herniation, lumbar spondylolisthesis or lumbar degenerative diseases. Usually in addition to sciatica, there are also symptoms of low back pain.
The researchers found that in addition to sciatica, some patients had no low back pain at all, but instead had tenderness in the piriformis muscle of the buttocks. So since 1947, the medical term of piriformis syndrome has been put forward, and it has gradually received attention.
Piriformis muscle of the deep hip space black pot< /strong>
Although it is called piriformis syndrome, there are actually six small muscles in the deep hip space where the piriformis muscle is located. Together with the piriformis muscle, it controls the movement of the hip joint. Activity. In the picture, you can see from top to bottom four muscles that easily affect the sciatic nerve, including the piriformis muscle (P), the superior colic (SG), the obturator internus (OI) and the inferior colic (IG). The drawn quadratus femoris also compresses the sciatic nerve.
The reason why the piriformis muscle has been carried for so long is because of the congenital structure, 78% of the human sciatic nerve (SN) is as As shown in the figure, it walks under the piriformis muscle (P), and 21% of the people’s sciatic nerve will pass through the piriformis muscle in various forms as shown in Figures b to f below, and it is easy to be pinched by the piriformis muscle. Therefore, doctors have long believed that the piriformis muscle is the only killer that compresses the sciatic nerve in the buttocks.
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But there are many real reasons for sciatic nerve compression in the deep hip space. The common reasons are as follows: Species:
1. Fiber or fibrovascular band
2. Piriformis syndrome< /span>
3. Obturator-obturator syndrome
4. Quadratus femoris-sciatica lesions (ischium-femur Pinch syndrome,)
5. Hamstring compression
As you can imagine, pear The piriformis muscle has been the scapegoat for so many problems for a long time. After seeing this, does it make people want to shout: Let go of that piriformis muscle! To clear its name?
Typical symptoms of deep hip syndrome strong>
In short, many problems will compress the sciatic nerve in the deep buttock space, and the clinical manifestations of these problems are similar, but it is difficult to distinguish, so in recent years they have been collectively referred to as deep buttock syndromeComplications (Deep Gluteal Syndrome). Typical symptoms include
1. Posterior hip or hip pain combined with hip or posterior greater trochanter pain
2. Conduction pain like sciatica (since The hips extend to the thighs, calves, and even the feet)
3. Unable to sit for more than 20-30 minutes
4. Possibly limping due to pain or weakness
5.The affected foot has numbness, paresthesia or hypoesthesia
6.A small number of people may have sciatica caused by intervertebral disc herniation, which makes it difficult to distinguish.
In general, drug therapy and physical therapy can relieve the symptoms of deep hip syndrome, but posture correction, fascia relaxation, coordination of core muscles and peripheral muscles of the hip joint Strengthening is the most important thing to prevent the recurrence of symptoms.
Source: Traditional Chinese Medicine Rehabilitation