The
disc (or intervetebral disc) is a structure that is found in between
the spinal vertebral bodies from the neck to the sacrum (tailbone). It
serves as a cushion and helps the spine to move.
Each disc is
composed of two parts, the nucleus pulposus (the central part) and the
annulus fibrosis (the outer part). The nucleus pulposus provides the
padding and it is surrounded by the annulus fibrosis which forms a ring
around the nucleus pulposus. This pulposus also attaches to the
vertebral bodies above and below.
The diseases frequently associated with the disc :
The
diseases frequently associated with the disc are usually 2 in number,
disc herniations (abnormal protrusions of a portion of the disc
material) and disc degeneration (changes in the disc seen in normal
aging and also in injury) respectively.
The sites usually affected by disc herniation in neck :
The
most common levels for disc problems are in descending order C6-C7 (C
refers to cervical and the number refers to the number of the vertebral
body counting from the top), C5-C6, C7-T1 (here the T refers to the
thoracic spine, the part that the ribs attach to), C4-C5 and very rarely
C3-C4.
Why and how disc protrusions cause pain? :
Herniation
of the contents of the disc into the spinal canal often occurs when the
front side (stomach side) of the disc is compressed while sitting or
bending forward, and the contents (nucleus pulposus) get pressed against
the tightly stretched and thinned membrane (annulus fibrosis) on the
rear (back side) of the disc. The combination of membrane thinning from
stretching and increased internal pressure (200 to 300
psi) results in
the rupture of the confining membrane. The jelly-like contents of the
disc then move into the spinal canal, pressing against the spinal
nerves, thus producing intense and usually disabling pain and other
symptoms.
Symptoms caused by the herniation :
Pressure on a nerve root is referred to as
cervical radiculopathy.Cervical disc herniations can press on the spinal cord and cause a problem called
cervical myelopathyThe
most common symptom of a cervical disc herniation is neck pain that
radiates (spreads) down to the arm in various locations. The specific
location of the arm pain depends on which disc is involved. There can
also be associated paresthesias (pain as if pricked with pins and
needles) and in some cases weakness of some of the arm muscles. Patients
find that turning their head away from the painful side helps.
Extending the head makes the pain worse so that looking up is avoided.
Bending the head down usually gives some relief.
Severe neck pain
radiating to the back of head and down between the shoulder blades may
be present with an acute disc prolapse. There may also be an associated
muscle spasm aimed at limiting the movement and relieving the pain. How
ever in certain occasions the spasm itself may cause generalised neck
pain.
Cervical Disc Herniation Treatment :
The treatment of cervical disc herniation can be divided into two categories,
conservative and Pancha karma with Marma Chikitsa.
In general,
conservative management
consists of maneuvers to reduce pressure on the nerve root.
Immobilization with the neck in a flexed forward position may be
helpful. Straining should be avoided. Medication in the form of anti
vatic or anti vata-kaphaik like Maha Rasnadi, Prasaranyadi, Gulgulu
thiktam etc., may be prescribed. As these medications are selected based
on the Prakruti (Constitution) of the patient, patients should consult
their doctor if taking any medications for longer than a few days.
Ayurveda medicines of course do not cause any side effects, only when
proper medicine is selected for proper Prakruti. Other wise it may
aggravate the agony, there by giving an impression like that of a side
effect. Say for example a person with Pitta Prakruti suffering from
Bleeding Piles if consumes a preparation with
Bhallataka (Semecarpus
ancardium) as it’s ingredient, he can be rest assured that his symptoms
are going to get worsened, sometime leading to hospitalization. It is
because Bhallataka increases the Pitta and hence will drastically
increase the flow of already existing venous blood loss in the bleeding
piles. Physical therapy may be prescribed. This can consist of traction,
mild stretching, exercise, heat, massage etc.