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).