Biomechanical Principles of Spinal Orthosis and Cervical Orthosis
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Questions and Answers

Why is immobilizing the cervical spine difficult?

  • It is the most mobile part in the spine (correct)
  • It has a relatively large body surface
  • It has limited pressure tolerant areas like chin and occiput
  • It has uniform movement patterns at different levels

    • What is the main purpose of 3-point pressure in spinal orthosis?

  • Controls lateral flexion and rotation
  • Controls rotation and lateral flexion
  • Controls flexion/extension and lateral flexion (correct)
  • Controls only flexion and extension

    • What are the functions of cervical orthosis?

  • Positioning the head and limiting movement in lateral rotation
  • Positioning the head and limiting movement in flexion
  • Unloading the cervical spine and restricting lateral rotation (correct)
  • Limiting movement in extension and rotation

    • Which classification does a Philadelphia orthosis belong to?

    <p>Cervical collars</p> Signup and view all the answers

    What does a soft cervical collar primarily control?

    <p>Flexion/extension movement</p> Signup and view all the answers

    What is the positive effect of intra-abdominal pressure in spinal orthosis?

    <p>Makes the trunk more rigid and stiff</p> Signup and view all the answers

    Which cervical collar is made of foam and rubber covered by a stockinet?

    <p>Semirigid cervical collar</p> Signup and view all the answers

    What does the Philadelphia orthosis restrict?

    <p>Flexion and extension of cervical spine</p> Signup and view all the answers

    Which device is a modified poster appliance with sternal plate, chin and occiput support?

    <p>SOMI brace</p> Signup and view all the answers

    What does the Halo device consist of?

    <p>Rigid metal or graphite ring attached to skull by four fixation pins</p> Signup and view all the answers

    Which orthosis extends down to mid thorax anteriorly and posteriorly?

    <p>Yale Cervicothoracic Orthosis</p> Signup and view all the answers

    What is the purpose of the Minerva body jacket?

    <p>Immobilization and support</p> Signup and view all the answers

    What is the primary function of the Poster Appliances?

    <p>Limit flexion, extension, rotation, and lateral flexion</p> Signup and view all the answers

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