... operate 2. Low failure rate 3. Function of lumbar and cervical vertebra traction 4. Computer controlled program Features ... traction modes for choosing.4. Automatic calibration and compensation of the traction force. 5. Multiple security ... of thoracic and lumbar vertebra, Traumatic cervical fracture, Malposition and dislocation, Dizziness, Headache, Dysarteriotony, Vision and language barriers and ...