As a disc degenerates,
it can herniate back into the spinal canal, which
is known as a disc herniation (or a herniated disc).
The weak spot in a disc is directly under the nerve root,
and a herniated disc in this area puts direct pressure on
the nerve, which in turn can cause pain to radiate all the
way down the patient’s leg to the foot.
Approximately 90% of disc herniations will occur at
L4-L5 (lumbar segments 4 and 5) or L5-S1 (lumbar segment 5
and sacral segment 1), which causes pain in the L5 nerve
or S1 nerve, respectively.
L5 nerve impingement from a herniated disc can cause
weakness in extension of the big toe and potentially in the
ankle (foot drop). Numbness and pain can be felt on top of the
foot, and the pain may also radiate into the rear.
S1 nerve impingement from a herniated disc may cause
loss of the ankle reflex and/or weakness in ankle push off
(e.g. patients cannot do toe rises). Numbness and pain can
radiate down to the sole or outside of the foot.
Herniated Disc | Disc Herniation
Herniated Disc | Disc
Herniation
Conservative treatment
for a lumbar herniated disc
In most cases, if a patient’s low back
and/or leg pain is going to resolve after a lumbar herniated disc it
will do so within about six weeks. While waiting to see if the disc will
heal on its own, several conservative treatment options can help reduce
the back pain, leg pain and discomfort caused by the herniated disc.
Physical therapy
Osteopathic/chiropractic manipulations
Non-steroidal anti-inflammatory drugs (NSAIDs)
Oral steroids (e.g. prednisone or methyprednisolone)
An epidural (cortisone) injection
If the pain continues after six weeks, it is reasonable to consider
microdiscectomy surgery as an option to alleviate the pain from the
herniated disc. A microdiscectomy essentially acts as a microdecompression
of the nerve root to provide the nerve with a better healing environment.
Surgical treatment for a
lumbar herniated disc
Using microsurgical techniques (a small
operation using a microscope) to treat a lumbar herniated disc, a
microdiscectomy can usually be done on an outpatient basis or with an
overnight stay in the hospital, and most patients can return to work full
duty in one to three weeks.
With an experienced surgeon, the success rate of surgery for a lumbar
herniated disc should be about 95%. Usually, only the small portion of
the disc (5-8%) that is pushing against the nerve root needs to be
excised, and the majority of the disc remains intact.
Herniated Disc | Disc
Herniation
The information
is derived from believed to be reliable government
sources
and is not meant to be medical advice. Lumbar herniated disc needs to be
treated by a qualified medical doctor.