traction techniques

Introduction to Traction as a Therapeutic Modality

  • Definition of Traction: Traction involves applying a mechanical force to the body to elongate or separate tissues.
      * Traction can be applied to various body parts, mainly focusing on the cervical and lumbar spine, and occasionally to peripheral joints like the knee and ankle.
      * Unlike manual therapy techniques, traction is considered a therapeutic agent or modality.

Types of Traction Applications

  • Static Traction: Force is applied and held steady.
  • Intermittent Traction: Force is applied, released, and reapplied in cycles.
  • Mechanical Traction Devices:
      * Electrical Mechanical Traction: Uses motors to apply traction.
      * Pneumatic Traction: Utilizes air pressure to create separation.
      * Manual Traction: Therapist uses hands or belts to apply traction.
  • Positional Traction: Patient uses body position to create elongation on one side, promoting separation.
  • Inverse Traction: Patient is inverted, using gravity as traction.
  • Self Traction: Patient uses body positioning to provide traction autonomously.

Spinal Anatomy Overview

  • The vertebral column typically consists of 24 vertebrae (some individuals may have extras).
      * Intervertebral Discs: Act as shock absorbers, containing a thick annular fiber and a soft nucleus pulposus.
      * Spinal Cord: Located within the intervertebral space, alongside openings for nerve roots to exit.
      * Facet Joints: Articulate vertebrae at the back of the spine.

Effects of Traction

  • Joint Distraction: Separating the vertebrae by a few millimeters can alleviate pressure on the spinal nerves and facet joints.
  • Reduction of Disc Protrusions: Traction can create a vacuum effect, helping to re-centralize disc material.
      * Mechanisms:
        1. Vacuum effect pulls the nucleus back into the center.
        2. Tension on the posterior longitudinal ligament increases resistance, guiding disc material back.
  • Stretching Soft Tissues: Similar forces used for disc protrusion can help elongate ligaments, muscles, and tendons, aiding relaxation and improving joint mobility.
  • Muscle Relaxation: Traction techniques can disrupt cycles of muscle spasm and pain through mechanoreception and reduced pressure on nerves.

Clinical Indications for Using Traction

  • Disc Related Conditions: Disc bulge or herniation can benefit from traction to centralize material back to its proper space.
  • Nerve Root Impingement: Can relieve pressure from arthritis or inflammation.
  • Joint Hyper-Mobility: General hypomobility may be treated with traction.
  • Subacute Inflammation: Traction can help reduce pressure and inflammatory edema.
  • Muscle Spasms: Alleviating spasms through traction can stop the pain-spasm cycle.

Contraindications for Traction

  • Motion Contraindications:
      * Unstable vertebral fractures, spinal cord compression, acute spinal surgeries.
  • Recent Injuries: Avoid in the first 72 hours post-injury.
  • Hypermobility or Instability: Conditions like Down syndrome or rheumatoid arthritis require caution.
  • Medical Issues: Uncontrolled hypertension, tumors, infections, osteoporosis, cognitive impairments, and certain positional intolerances.

Precautions and Risks

  • Rebound Effect: Pain may increase after traction due to excessive initial force.
  • Radicular Symptoms: Lumbar symptoms might arise from cervical traction due to dura mater stretching.

Different Mechanical Techniques for Traction

  • Motorized Electrical Traction Units: Allow computerized settings for adjusted parameters.
  • Home Devices: Relatively inexpensive pneumatic traction units available for patient use at home.
  • Advantages: Controlled force, relatively low cost (e.g., water bag over the door for $30 vs. pneumatic units for around $350).
  • Disadvantages: Time-consuming setup, potential anxiety due to lack of control, and high costs for some patients.

Self Traction Techniques

  • Self traction is for patients who need low levels of traction. Techniques may include hanging from overhead bars with appropriate support.
  • Safety considerations: Patients should maintain contact with the floor and have good balance.

Positional Traction

  • Utilized to specifically address unilateral spine issues by placing pressure on one side while opening space on the opposing side.
  • No special equipment is required, making it a low-cost option.

Inverse Traction

  • Uses the body's weight to provide distraction by inverting the patient.
  • Caution required for patients with high blood pressure or eye pressure issues (glaucoma).

Manual Traction

  • Therapist applies force manually, often in a diagnostic capacity to monitor patient response.
  • May not achieve sufficient force for joint distraction but is helpful for real-time patient assessment.

Parameters for Traction Treatments

  • Lumbar Traction: Start with 30-40 pounds, can increase to 50% or more of body weight. Duration around 5-10 minutes for static, 20-30 minutes for intermittent.
  • Cervical Traction: Initial traction force of 8-10 pounds; not exceeding 30 pounds in total pressure. Treatment durations are similar to lumbar traction.
  • Position Considerations: Prone for anterior structures, supine for posterior structures.

Tracking and Documentation

  • Document type (mechanical, manual, etc.), area treated (lumbar or cervical), patient position, maximum force, treatment time, patient response (e.g., pain levels, range of motion changes, symptom centralization).