spinal traction Flashcards
what is spinal traction
mechanical agent that separates joints and elongates surrounding tissue (capsule, menisci, ligaments)
what are the 2 kinds of traction
manually - by clinician; usually cervical
mechanically - using machine, BW or gravity; usually lumbar
what are the effects of traction
distract joints
reduce disc protrusion
stretch soft tissue
relax muscle
mobilize joint
goal of traction
reduce pain
exp joint distraction
usually used to address compression of spinal nerve roots
separates 2 joints perpendicular to articulation
% of BW for inc length of lumbar spine
25%
% of BW for distraction of lumbar apophyseal or facet joints
50%
% of BW for distraction of cervical vertebrae
7%
exp reduction of spinal disc protrusion
distraction = suction effect by dec intradiscal pressure sucking displaced part back or from tension of PLL pushing any post displaced anteriorly
spinal disc reduction is only applicable to what degree
protrusion and prolapse
malabo na for extrusion and sequestration
weight to reduce lumbar disc protrusion
27-55 kg
weight to reduce cervical disc protrusion
7-13 kg
exp soft tissue stretching
inc length of soft tissues
exp muscle relaxation in intermittent traction
d/t to dec pain - breaks pain-spasm cycle
oscillitatory movements stimulates GCT
stim GTO to inhibit alpha motor neuron firing = dec spasm
exp muscle relaxation in static traction
prolonged traction = dec monosynaptic response = dec spasm and tension
exp joint mob
inc mobility of spine
effect of traction used in spinal disc bulge or herniation
distract joint
reduce protrusion of disc
effect of traction used in spinal nerve root impingement
distract joint surfaces
reduce protrusion of disc - if IV herniation is the cause
effect of traction used in joint hypomobility
distract joint surfaces
stretch soft tissue
mobilize joint
effect of traction used in muscle spasm
relax muscle
dec pain
stretch soft tissue
effect of traction used in subacute inflammation
decrease pain
contraindications of spinal traction
if movement is contraindicated
acute injury or inflammation
joint hypermob or instab
peripheralization of symptoms with traction
uncontrolled HTN
with uncontrolled HTN when should you stop treatment
if BP increases >10 mmHg or if HR increases >10 bpm for cervical traction
precautions of spinal traction
structural disease or conditions affecting the tissue in the area being treated
when pressure from the belts may be hazardous
displaced annular ligament
medial disc protrusion
when nerve pain fully resolves
claustrophobia