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الموضوع: Physiological effects of spinal traction

  1. #1
    Junior Member
    تاريخ التسجيل
    Dec 2013
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    Physiological effects of spinal traction

    Physiological effects of spinal traction**
    Traction:

    Process of drawing, or pulling apart, of a body segment

    Mechanical Traction - using a traction machine or ropes pulleys to apply a traction force

    Manual Traction -clinician positions patient and applies traction force to joints of the spine or extremities
    Effects of Traction: Spine-
    Encourages movement between each individual spinal segment Amount of movement varies according to ..

    Amount of force, and *

    Length of time the *

    * force is applied

    Transient effect.

    ¯ pain, paresthesia, or tingling

    Due to physical separation of vertebral segments thus decreasing pressure on sensitive structures

    As long as positive physiologic effects occur, traction should be continued .

    -Effects of Traction: Ligaments

    Stretching effect

    Structural changes occur slowly due to viscoelastic properties

    Ligaments resist shear forces and return to original form following removal of a deforming load

    Sensitivity to rate of loading

    Ligament deformation results in lengthening of a ligament caused by traction loading

    Slow loading rates allow for more deformation.

    Effects of Traction: Disks-

    * Normal disk in non-compressed position Internal pressure (indicated by arrows) is exerted equally in all directions

    Internal annular fibers contain nuclear material .

    *In an injured disk, sitting or standing compresses the disk causing the nucleus to become flatter Pressure in this instance still remains relatively equal in all directions.

    *In an injured disk, movement in weight-bearing causes a horizontal shift in nuclear material If this was forward bending, the bulge would occur in the posterior annular fibers

    Anterior annular fibers would be slackened and narrow.

    *Herniation of the nuclear material occurs if the annular wall becomes weak

    Herniation may possibly put pressure on sensitive structures in the area.

    *When placed under traction, intervertebral space expands thereby decreasing pressure on the disk Taut annular fibers create a centripetally directed force Decreases herniation and pressure on sensitive structures in the area.
    Effects of Traction: Articular Facet Joint-
    Facet joints are separated releasing impinged structures

    Dramatic reduction in symptoms Joint separation decompresses articular cartilage allowing synovial fluid exchange to nourish cartilage

    Decreases rate of degenerative change .

    Increased proprioception from facet joint structures provide sensation of pain relief








    Effects of Traction: Muscles-

    Vertebral muscles can be stretched

    Initial stretch should come from body positioning

    Stretch lengthens tight muscle

    Allows for better muscular blood flow

    Activates muscle proprioceptors providing sensation of pain relief

    Gate Control Theory.

    Effects of Traction: Nerves-

    Focus of most traction treatments

    Pressure on nerves or nerve roots often associated with spinal pain Unrelieved pressure on a nerve will cause

    Slowing, eventual loss of impulse conduction

    Motor weakness, numbness, and loss of reflex

    Pain, tenderness, and muscular spasm.

    *name : nadeen dandini .

    *iD:60223.
    Prof.Samir likes this.

  2. #2
    Administrator
    تاريخ التسجيل
    Oct 2011
    الدولة
    Cairo - Egypt
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    15,229
    thanks
    give me plz the angles for traction
    which traction cervical or lumbar

    thanks

 

 

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