One of
the most common complaints I hear from new patients is radiating pain into the
extremities of the body. Many people experience radiating pain as a component
of neck pain or low back pain. A person with neck pain might have pain that
radiates down her arm, possibly into the hand. A person with low back pain
might have accompanying leg pain, possibly traveling into the foot. Such
arm/hand pain or leg/foot pain can represent a serious underlying health problem. However, not all types of
radiating pain are of equal importance. The key is to be able to identify which
patterns require prompt attention and which merely appear to be significant but
are not.
Authentic
radiating pain is most often caused by pressure and/or irritation of a spinal
nerve root. The spinal nerve becomes inflamed and sends pain signals to the
brain that are interpreted as pain in the region of the body supplied by that
nerve. Inflammation of a certain spinal nerve in the neck region will result in
the experience of pain down the outside of the arm and forearm and into the
thumb and possibly index finger. Inflammation of a certain spinal nerve in the
low back causes the person to feel pain traveling along the back of the thigh
and calf and into the fifth toe.
Specific
patterns of radiating pain are associated with inflammation of specific spinal
nerves. Such inflammation may be typically caused by subluxation (misalignments
of the vertebrae) creating pressure that can lead to herniated intervertebral
discs. Other disorders which may create local space-occupying pressure need to
be considered as well. A thorough history and physical examination will help to
identify the cause of the problem. X-ray studies may be needed, as well as an
MRI scan. The underlying problem, including the pattern of pain radiation, may
be termed a radiculopathy or radiculitis.
But most
cases of what appears to be radiating pain are not, in fact, related to
pressure on a spinal nerve. Most patterns of radiating pain are not associated
with a radiculopathy or radiculitis. Rather, the large majority of pain
patterns involving the arm/hand or leg/foot are caused by normal, everyday
aches and pains.
Our
run-of-the-mill physical problems involve relatively large muscles such as the
trapezius (overlying the upper back, shoulder, and mid back) from poor posture
and relatively small muscles such as those that overlay the spinal bones
themselves and help move the spinal column. Ligaments that hold bones together
and tendons that attach muscles to bones may also be involved in these everyday
ailments.
Irritation
and inflammation of muscles, ligaments, and tendons may cause more difficulty
than mere soreness and tightness. Such inflammation may also cause radiating
pain, but in broader, more diffuse patterns than those caused by inflammation
of a nerve root. A person might experience neck pain with arm and hand pain, or
back pain with leg and foot pain, but in a broad pattern not associated with a
spinal nerve.
The
bottom line is that correcting postural problems and realigning the spine is the best way
to long term relief. Chiropractors are highly trained and experienced in the
diagnosis and getting to the cause of such problems without medication. Get Adjusted!
References:
Caridi
JM, et al: Cervical radiculopathy: a review. HSS J 7(3):265-272, 2011
Magrinelli
F, et al: Neuropathic pain: diagnosis and treatment. Pract Neurol 2013 Apr 16
[Epub ahead of print]
Mena J, Sherman AL: Imaging in radiculopathy.
Phys Med Rehabil Clin North Am 22(1):42-57, 2011
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