Schmöller's nodules

Introduction to Xu Mo's Nodule Xu Mo's nodule, the rupture of the cartilage plate of the vertebral body, the nucleus pulposus can protrude into the vertebral body through the fissure, resulting in a semi-circular defect shadow in the vertebral body, called the Xu Mo's nodule. If it does not merge to the posterior margin of the vertebral body, there is no clinical signs of nerve root compression. basic knowledge Sickness ratio: 0.05% Susceptible people: no specific population Mode of infection: non-infectious Complications: vascular injury, peripheral nerve lesions

Cause of Xu Mo's nodule

It is a disease characterized by waist and leg pain caused by degeneration of the intervertebral disc, rupture of the annulus fibrosus, and compression of the spinal cord or nerve root by the nucleus pulposus.

Xu Mo's nodule prevention

First, strengthen exercise, keep fit

The basic cause of lumbar protrusion is lumbar disc degeneration, lumbar trauma and accumulated strain. Therefore, through exercise, the bones and the back muscles will be strong, and the nervous system reaction will be agile. Therefore, in various activities, the movements will be accurate and coordinated, and the lumbar vertebrae will not be easily damaged; at the same time, the exercise will help reduce the lumbar load. Delay the degeneration of the lumbar disc to prevent the occurrence of lumbar protrusion. The way of exercising can vary from person to person, depending on local conditions, such as doing radio exercises, aerobics, tai chi and other sports activities.

Second, maintain the correct labor posture

The correct posture can not only improve labor efficiency, but also prevent lumbar muscle strain and delay the degeneration of the intervertebral disc, thus effectively preventing lumbar protrusion.

Here are a few common postures that help protect the lumbar spine:

Standing laborers: hips, knees slightly flexed, about 15 degrees is appropriate, natural abdomen, bilateral hip muscles contracted inward, so that the pelvis forwards, the lumbar vertebrae straight.

Workers seat: Adjust the seat height so just double knee flexion and extension freely, and chairs close to the upper lumbar spine and keep the spine straight. The chair seat should not be too narrow, it should be able to support the two sides of the thigh.

Workers who need to bend halfway due to the nature of their work (such as cooks, hairdressers, etc.): Keep the lower back straight and the feet apart from the shoulders so that gravity falls on the hips and feet. When bending over heavy objects, you should stretch your waist first, then bend your hips and knees, then stretch your hips and knees, and lift your weights. When lifting heavy objects, you should straighten your chest and bend your hips first. Kneeling, then lifting heavy objects at the same time.

Schwarz's nodule complications Complications, peripheral injury, vascular injury

1, infection: is a more serious complication. In particular, the intervertebral space infection brings great pain to the patient, and the recovery time is long. The general infection rate is about 14%. The main performance is: the original symptoms of neuralgia and low back pain disappeared, after 5 to 14 days, severe low back pain accompanied by pain in the buttocks or lower abdomen and muscle spasm, can not turn over, a lot of pain.

2, vascular injury: vascular injury during lumbar disc herniation, mainly caused by posterior surgery to remove the disc. If the intervertebral disc is removed by intraperitoneal or extraperitoneal anterior approach, these large blood vessels are not easily injured due to exposure of the abdominal aorta and inferior vena cava or iliac crest or vein. The cause of vascular injury is that the intervertebral disc tissue is removed to the front by the pituitary forceps. As a result, the tissue forceps pass through the anterior fiber annulus, and the large blood vessels are clamped to cause a blood vessel laceration.

3, nerve injury: lumbar disc herniation, the compression of the nerve root itself due to the compression of the intervertebral disc tissue, chemical stimulation of the nucleus pulposus and congestion, edema, adhesions, etc. have varying degrees of nerve damage, so after surgery, there may be Neurological symptoms may be worse than before, and some may be nerve damage caused by surgical operations. Nerve damage can be divided into: epidural single or multiple nerve injury, intradural cauda equina or nerve root injury, anesthetic drug damage.

Symptoms of Xu Mo's nodules Common symptoms Neuromuscular symptoms Neurosis and neurosis

A semi-circular defect shadow appears in the vertebral body. If it does not merge to the posterior edge of the vertebral body, there is no clinical signs of nerve root compression.

Examination of Xu Mo's nodule

1, lateral X-ray film visible vertebral body trailing edge triangle tilted shadow.

2. The CT film shows the image of a typical Xu Mohs' nodule.

Diagnosis and differentiation of Xu Mo's nodule

Xu Mo's nodule (also known as schmorl nodule), but often caused by the Mohs's nodule to lift the posterior edge of the vertebral body, stimulate or oppress the nerve root and cause symptoms and signs.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.