What is the reason for lumbar plexus block

When it comes to lumbar plexus block, many friends don’t know what kind of disease it is. This is mainly because it is not common in clinical practice. To be precise, it is not a disease. However, if the lumbar plexus block is not solved in time, the harm will be relatively serious. Therefore, I hope that all friends can understand the causes of lumbar plexus block, so as to pay attention to preventing this kind of phenomenon from happening in daily life, thereby avoiding the occurrence of lumbar plexus block.

Causes of nerve blocks

There are many reports of psoas compartment nerve blocks causing bilateral lower limb blocks. In the early days, people believed that this phenomenon was caused by the local anesthetic flowing to the opposite side through the expanded retroperitoneal space, producing contralateral anesthesia. It is also related to the air injection speed, amount, drug injection speed and length of time lying on the side.

Another group of scholars believe that it is caused by the diffusion of the drug solution from the epidural space of the intervertebral foramen to the opposite side. The ink was injected into the intermuscular space from one side of the corpse. The dissection revealed that the ink was distributed in the intermuscular space of the psoas major muscle on the same side and spread upward and downward along the psoas major muscle. No spread to the contralateral side through the retroperitoneal space was found. After opening the spinal canal, it was found that the blood penetrated into the epidural space through the lumbar intervertebral foramen, and also diffused from the contralateral intervertebral foramen. It was confirmed that spread from the intervertebral foramen was the main cause of bilateral nerve block. It is related to individual anatomical differences.

This article has given a detailed introduction to the causes of lumbar plexus nerve block. Here we would like to remind all friends that lumbar plexus nerve block is divided into posterior lumbar plexus block and anterior block. They have different clinical symptoms. If you feel similar symptoms, you must first distinguish which type of nerve block you have so that you can carry out targeted treatment. I hope patients understand this.