Where is the l5 in your back?
Thus the L5 is the largest and strongest lumbar vertebra, but is also the most susceptible to stress-related injuries. The L5 vertebra is located in the spinal column of the lumbar (lower back) region inferior to the L4 vertebra and superior to the sacrum.
Weakness of any of these muscles can create a pathological gait. Compression of the L5 nerve will also cause numbness, paresthesias (pins and needles) and pain in the L5 distribution. This is buttocks pain that radiates down behind the thigh to the back of the calf and then to the top of the foot.
- If you have a herniated lumbar disc, you may feel pain that radiates from your low back area, down one or both legs, and sometimes into your feet (called sciatica). You may feel a pain like an electric shock that is severe whether you stand, walk, or sit.
- The two nerves most commonly pinched in the lower back are L5 (lumbar 5) and S1 (sacral 1). Pinched nerve at L5. The L5 nerve supplies the nerves to the muscles that raise the foot and big toe, and consequently, impingement of this nerve may lead to weakness in these muscles.
- Passive treatments for low back pain from degenerative disc disease may include:
- Pain medication. Typical pain medications used to treat the low back pain include acetaminophen, NSAIDs, oral steroids, narcotic drugs, and muscle relaxants.
- Chiropractic manipulation.
- Epidural injections.
- TENS units.
The two nerves most commonly pinched in the lower back are L5 (lumbar 5) and S1 (sacral 1). Pinched nerve at L5. The L5 nerve supplies the nerves to the muscles that raise the foot and big toe, and consequently, impingement of this nerve may lead to weakness in these muscles.
- Traversing nerve root. Another nerve root goes across the disc and exits the spine at the next level below. It is called the “traversing” nerve root. Example: The L5 nerve root is the traversing nerve root at the L4-L5 level, and is the exiting nerve root at the L5-S1 level.
- Non-steroidal anti-inflammatory drugs (NSAIDs). Since inflammation is a common component of spinal stenosis, anti-inflammatory drugs, such as ibuprofen (e.g. Advil), naproxen (e.g. Aleve) or Cox-2 Inhbitors (e.g. Celebrex), may be an effective lumbar stenosis treatment. Epidural injections.
- If the herniated disk presses on nerves in the nearby spinal canal, this can cause variety of nerve-related symptoms, including pain, numbness and muscle weakness. In the most severe cases, a herniated disk can compress nerves that control the bowel and bladder, causing urinary incontinence and loss of bowel control.
Updated: 18th November 2019