This tutorial is about what is sciatica and what are the five most common causes of sciatica. Most importantly you need to understand the anatomy of the spine, because when you understand the anatomy you’ll know why you have sciatica. This is a normal spine between the head and the hips, there are 24 vertebrae. Looks just like this, the head is here the hips be here. 24 vertebrate and the vertebrate are the bones. In between each bone there is a.
Disc, and the disc allows for motion, but also the disc acts a little bit like a shock absorber. It also allows enough room between each vertebra for a nerve exit off of the spinal cord. So the disc is responsible for there being enough room between the vertebrae for the nerve to exit off of the spinal cord. The spine runs down through the inside of the spine. In between each vertebra there’s an opening we called the foramen. There are five nerves in the low.
Back that exit the spine that come together to form the sciatica nerve. when any one of these five nerves is pinched you will have sciatica that will cause the pain down your leg. Ultimately is these nerves coming out of the spine and then going down the leg. The five most common reasons are the result of in compromise to the space where the nerve comes out. So what does that mean, it means that there are things that will cause a pinching of the nerve.
Because that opening physically gets smaller. those five things are herniated disc creating a smaller opening, bulging discs and degenerate disc vertebrae physically get closer. Stenosis the opening physically getting smaller. The last one, piriformis syndrome, actually periformins syndorme is probably the easiest one to treat. This is because that’s a muscle imbalance. I will show you quickly.
What that looks like. herniated disc, this one vertebra on top of the other. what happens with a herniated disc is the nucleus will push into this spinal canal. Ultimately what happens is it will start to compromise the nerves and one vertebra on top of the other. Here’s the disc, here in the open where the nerve comes out of the foramen. What happens is the disk will push in to the spinal canal causing pinching of the nerve. That tends to be the most common reason.
The next is the bulging disc, this is lot like a herniated disc just not as bad. the part of the disc is pushing into the canal. It’s not as big. The herniated disc tends to be more inside the disc pushing all the way through to the outside. That’s the nucleus we call that a herniation. The bulging disc is where it’s physically not quite as big irritating the nerve. The third one is the degenerated is and what happens with the degenerated.
Disc is, the disc gets thinner and has gets there the vertebrae get closer together. When the vertebrates physically get closer together you start to compromise that nerve. The opening gets smaller. The most common reasons have a lot to do with what’s causing the opening to get smaller. The fourth one is the stenosis. What is stonsis? Stenosis when the things the inside canal physically will get smaller. And a little tighter. As it gets tighter it will.
Start to compromise the nerves a little bit. also what happens is the bone will physically start to change shape where the foramen is. The space will start to get a little smaller and compromise the sciatic nerve. The fifth reason is piriformis syndrome. What you need to know about these conditions is if you have sciatica you need to treat what’s causing the pinching of the nerve. There are five reasons periformis syndorme is probably easiest to treat. At the Illinois Back Institute,.
Low Back Pain Part 7 Sciatica
sciatica can be an extremely disabling condition. And it typically refers to pain that radiates down the leg, often into the calf, and sometimes into the foot. If we just look at a spine, we can talk about some of the sources and causes of sciatica.
This is the lumbar spine, or the low back. The skin of the back would be right here. And then here is the tail bone as a point of reference. The hips are here, and these are the little bones that you would feel sticking out of your back. The sciatic nerve actually exits just off to the side.
Below your hip, and that is a group of nerves then that travel down the leg to the calf, and even into the foot. If we look to the front we can see a little bit more of the anatomy of the spine. These are the large bones that stack up.
To make the spinal column. In between the bones we have cartilage discs that separate the bones. And then turning again to the back, we see the spinal canal inside and in between these bones. Sciatica can occur for a number of reasons.
First, if we have a large disc herniation or one of these discs ruptures, it can push back into the spinal canal, compressing the nerve and resulting in sciatica, or pain that radiates down the leg. Secondarily, we can also have a pinched nerve.
Occurring inside the spinal canal. As arthritis grows or there’s a thickening of the ligament, it can begin to crush these nerves inside the canal. As the nerves become irritated and compressed, the sciatic nerve also is inflamed, and a person will experience severe pain that radiates down the leg.
Finally, sciatica can occur as a direct contusion or a blunt blow to the sciatic nerve as it exits through the gluteal muscles right here. Sciatic patients often present complaining of severe leg pain. They often say the pain is electrical burning,.
Like a terrible toothache in their leg. Many times these patients present, and they’re very uncomfortable. They haven’t slept at night. They can’t sit for very long in the car. They can’t stand or walk for more than 20 minutes.