Piriform muscle syndrome: Piriform muscle injury compresses the sciatic nerve passing under it, with pain in one hip and leg as the main symptom.
The basic lesion is located in piriformis muscle of hip, while the lesion of lumbar disc herniation is located in lumbar disc. Although both of them stimulate the sciatic nerve to cause pain, the stimulated parts of the sciatic nerve are different.
According to statistics, piriformis injury syndrome accounts for 15%~25% of hip soft tissue injury diseases, or about 6% of low back pain or sciatica is caused by piriformis disease.
Although the incidence is high; But so far, there is no effective diagnosis method for piriformis syndrome in clinic, and it is often misdiagnosed and missed, and it is most likely to be misdiagnosed as lumbar disc herniation.
Piriform muscle syndrome is obviously different from lumbar disc herniation in pain characteristics, physical examination and imaging examination, which can be used for differentiation.
Imaging, MRI can be used as the main diagnostic basis for piriformis syndrome, but it is expensive. B-mode ultrasound is the first choice to diagnose piriformis syndrome, which has the advantages of simplicity, safety, non-invasion and good repeatability. However, B-ultrasound can not clearly show the deep tissue, which has certain limitations. The cause of this disease is complicated and controversial, so we can know some common causes.
The main cause and pathology of piriformis syndrome is that when the hip joint is twisted and flashed back, the hip joint rotates outward sharply. At this time, the piriformis muscle contracts violently, or the hip joint suddenly adducts and rotates outward (in short, the piriformis muscle is pulled and injured, and the injured piriformis muscle stimulates or oppresses the sciatic nerve, or the local nutrient vessels of the sciatic nerve are short of blood supply and the reflux is blocked. Finally,?
In rehabilitation training and treatment, the key lies in relieving piriformis spasm, relieving the pressure on nerves and blood vessels, promoting blood circulation, eliminating local aseptic inflammation, improving the nutritional supply of local tissues and repairing tissue damage. ?