Traction
therapeutic use of manual or mechanical tension created by a pulling force to produce a combo of distraction and gliding to relieve pain and increase tissue flexibility
mechanical elongation does what?
○ stretches the spine
○ tenses ligaments and facet joint capsules – flattens HNP (“sucks it back in”-Cyriax)
○ widens the IV foramina
○ straightens spinal curves
○ increases movement @ facet joints
indications for traction
HNP
DJD/DDD
hypomobility
hard neuro signs
radicular symptoms
+HNP tests
muscle spasms
pain
better with manual distraction and worse with vertical compression tests
postioned by postural preference of pts for comfort
contraindications for traction
tumor in spine
infection of spine
vascular compromise
acute traumatic injuries (sprains,strains,fx, immobilizations)
inflammatory issues (RA)
pregnancy/ hiatal hernia (lumbar)
precautions of traction
TMJ dysfunction
claustrophobia
inability of pt to relax
intensity - weight
50% BW (friction-free table) for separation
25% BW just to initiate traction effect
duration
HNP
50% BW
5-10 mins with static, 15 min intermittent (50:10) on/off
if unable to tolerate static, can do longer hold times intermittently
BEWARE OF REBOUND EFFECT
duration
hypomobility
30% BW
15-20 min intermittent, shorter cycling time (around 20:20)
note: want lots of reps to improve joint mobility/decrease synovial viscosity
what is the rebound effect?
After traction, when the force is released, the spine can recompress suddenly.
This can sometimes worsen symptoms (especially radicular pain) due to sudden reloading.
To prevent this:
Bring traction off slowly.
Have the patient rest in supine for a few minutes before getting up.
Avoid sudden flexion/extension right after traction.
HNP
static vs intermittent
static: Constant hold
Static Traction (constant hold)
Best for:
Acute, irritable conditions (esp. HNP/disc herniation).
Severe muscle guarding/spasm.
Patients who peripheralize with movement.
Why:
Constant pull can help “suck in” or centralize disc material (Cyriax).
Reduces motion, which is less irritating to acutely inflamed tissues.
Shorter duration: 5–10 minutes.
Intermittent Traction (on/off cycles)
Best for:
Chronic or subacute conditions.
Facet joint dysfunction (hypomobility, stiffness).
Patients who can tolerate some movement.
Why:
The “on/off” pumping action improves nutrition, reduces stiffness.
Helps mobilize the facet joints.
Longer duration: 15–20 minutes typical.
Cycle example: 50 sec on / 10 sec off (longer holds for disc patients if static isn’t tolerated).
positioning
flexion vs extension
flexion:
posterior pull: supine, knees on stool, angled pull
extension:
anterior pull: prone, no pillow, angled pull
neutral pull: prone over pillow, table higher, pull parallel
Harness
thoracic / lumbar
bottom of strap is at xiphoid process and hugs ribcage
lumbar:
top of strap is at navel and above iliac crests
should line up below table split once when pt is positioned in prone or supine