The nervous
system is a continuous structure that runs throughout the body, like
the extensive roots of a tree. It includes the brain, spinal cord
and the nerves that connect almost every structure of the body to
the spinal cord. It is a key information transmitting organ;
transmitting instructions from the control centers or sensations from body structures towards the interpretative and integrative higher centers. It is commonly injured by compression,
tension and friction or irritation as it is subjected to contact stresses outside or
inside the body.
As everything is all connected, tension or impingement on one part of the nerve affects everything else along its course. Take for example the pictures shown below.
It is not uncommon for symptoms of nerve pain presenting at distal areas of the body such as the elbow or wrist and hand to have its primary from the neck, considering that as the nerves exit, they can be compressed by muscles of the neck. What this means is that we should look at the whole body structure and not focus on the regional complaint. Oftentimes, releasing the restrictions on the neck would have significant effects on the symptoms experienced down the arm. That is usually my first course of treatment.
It is also possible for nerve structures to develop adhesions along their course and for that, they might need to be mobilized. I prefer not to do the limb tension techniques as I prefer not to stretch and provoke an already irritable and painful nerve. Also, according to the book Manual Therapy for Peripheral Nerves by Barral and Croibier:
"A nerve tension can prematurely stop intraneural circulation. When this happens, nutrition is compromised, particularly if the nerve sheaths are broken open. This decrease in nutrition occurs intraneurally as well as to the accompanying nerve vessels. Normally, the spiral or winding regional vessels can adjust very well to the changing
position of the nerves without becoming cracked or overstretched. However, as soon as their adaptability thresholds are exceeded, their lumen narrows. This causes the blood flow to slow or even cease. Studies on living tissue shows that the first microcirculation changes occur at a length increase of 8%. With a stretch of about 15%, the blood flow is interrupted but normalizes again after the release of the traction force. Manual therapy can help to decrease the mechanical forces acting on the nerves to improve the microcirculation."
If and when I have to, I prefer instead to use the principles of Clinical Neurodynamics as they use neural sliders initially and progress to neural tensioners only when the patient's body has shown a capability to tolerate it. Tensioners though are end stage progression of treatment and are not always necessary.
The sequence of movements applied in neurodynamics are very specific so the nerve slides along its course and are mobilized only where the therapist wants them to be moved and the entire course of the nerve is not subjected to traction force or stretch.
Exodus 31:2-4
New Century
Version (NCV)
2 "See, I have chosen
Bezalel son of Uri from the tribe of Judah. (Uri was the son of Hur.)3 I have filled Bezalel with
the Spirit of God and have given him the skill, ability, and knowledge
to do all kinds of work.4
He is able to design pieces to be made from gold, silver, and bronze,
Skill, ability and knowledge come from the Lord!