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Biomechanical Principles of Spinal Orthosis and Cervical Orthosis

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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?

Cervical collars Signup and view all the answers

What does a soft cervical collar primarily control?

Flexion/extension movement Signup and view all the answers

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

Makes the trunk more rigid and stiff Signup and view all the answers

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

Semirigid cervical collar Signup and view all the answers

What does the Philadelphia orthosis restrict?

Flexion and extension of cervical spine Signup and view all the answers

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

SOMI brace Signup and view all the answers

What does the Halo device consist of?

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

Which orthosis extends down to mid thorax anteriorly and posteriorly?

Yale Cervicothoracic Orthosis Signup and view all the answers

What is the purpose of the Minerva body jacket?

Immobilization and support Signup and view all the answers

What is the primary function of the Poster Appliances?

Limit flexion, extension, rotation, and lateral flexion Signup and view all the answers