Mechanical Traction Flashcards
Physics
Application of a mechanical distraction force along the long axis of the spine
Physiologic Effects
Physiologic Seperation of tissues
- Facet joint gapping with supine traction application
- Interverterbral foramin size increasses
- Intradiscal pressues reduce
- Increase diffusion of water into the disc and changes in disc height (Important because discs don’t have blood flow but are living tissues; Nutrients, Oxygen in, Waste products out
- Reduction of disc herniation (bulding of disc tissue)
- Increased joint mobility
Disc Injury
- Annulus Fibrosis breaks down, Nucleus pulposus slowly leaves
- Generally breaks down posterior laterally
- 4 Stages: Protrusion, Prolapse (tunneling), Extrusion (Fibrosus disrupted, Sequestration (Free nuclear material)
Radicular Pain
- Goes down limb
- Dermatomal distribution
- Thoracic radicular pain is rare
- Cervical and lumbar radicular are common
Physiologic Effect - Main
Pain modulation (May be secondary to tissue seperation/water diffusion, or secondary stimulus (creates sensation - gives relief))
- Centralization may occur (Goal)
- Should be quick relief
Centralization
Back pain dominant
What we want!! Good Prognosis
Peripheralization
Limb pain dominant
Ex: Leg Pain
After adjustment if occurs, likely spinal surgery required; poor prognosis
Indications for Traction
Specific criteria remain elusive
Most agreed upon indications include:
- Radicular symptoms (arm or leg)
- Positive neural tension and provocation tests (Reproduce radicular response)
- Relief of symptoms with manually applied traction
Not For Chronic Back Pain
Contraindications for Traction
- Acute Trauma
- Osteoporosis or osteopenia
- Chronic Steroid Use
- Rheumatoid Arthritis (Hypermobile in Cervical)
- Ankylosing Syndrome (Vertebrae are fused)
- Down’s Syndrome (Hypermobile, especially cervical)
- Systemic Joint Hypermobility
- Pregnancy (Due to Hormones, very flexible)
- Previous surgical stabilization or decompression
- Previous surgery with spinal implants/prosthetic discs
- Peripheralization with traction
Bone Meds also weaken bones, suggest against traction
Precautions for Traction
- Claustrophobia
- COPD or other respiratory disorders
- Dizziness, fainting and nausea have rarely been reported adverse effects
- Hypertension
Treatment Considerations - Parameters
Traction type: mechanical device (clinic or home), manual, positional
Why does seated traction not work?
- Doesn’t take enough pressure off
- Compresses TMJ (lead to jaw pain)
Why do manual traction? How long?
- 1-2 minutes
- Gives indication if traction gives patient relief
- Short term treatment
Positional traction
- Placing patient in a comfortable position that alleviates radicular symptoms
- Askj patient what does and doesn’t relieve their symptoms
Explain which side is alleviated
Right leg is side of radicular pain. Putting someone in this position allows for relief. Always have effected leg toward the ceiling