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C-SPINE

POSITIONING OF C-SPINE XRAY EXAMS

QuestionAnswer
Where do you center for an AP Open Mouth Odontoid? Perpendicular to the IR, enters open mouth.
How much do you angle for anterior obliques of a C-spine? 15-20 degrees caudal.
What anatomy is seen on a Lateral C-spine? Squared vertebral bodies, spinous processes, intervertebral joints, & zygapophyseal joints C2-T7.
What position is appropriate for a Swimmers Lateral of the C-Spine? The patient is lateral with the arm closest to the IR raised over the head to drop the opposite shoulder lower and move it out of view.
Where do you center for flexion extension laterals of the C-Spine? The CR is perpendicular to the IR, it enters C4 and passes through the mastoid tip.
What anatomy is shown on an AP Fuchs Odontoid? The Odontoid process within the Foramen Magnum.
What intervertebral foramina are best demonstrated by an RPO position of the C-Spine? The Left intervertebral Foramina are seen best in this position.
What intervertebral foramina are best demonstrated by an LAO of the C-Spine? An LAO position would best demonstrate the Left intervertebral foramina.
What is the correct position for an RAO/LAO of the C-Spine? Body rotated 45 degrees/ breast and shoulder are against the IR, the head is lateral.
What angle is used for an AP Axial C-Spine? 15-20 Cephalad.
What anatomy is demonstrated on an AP Axial of the C-Spine? Vertebral bodies & intervertebral joints of C3-T1.
Where do you center for a Swimmers Lateral of the C-Spine? The beam is Horizontal, and Perpendicular to IR; enters C7/T1 at level of vertebra prominens.
Where should the CR enter for an AP Fuchs Odontoid? CR is perpendicular to IR, enters just distal to the tip of the chin.
Where should the CR enter for a Cross-Table Lateral C-Spine? Perpendicular to the IR, enters C4, passed through the masoid tip (coronal plane).
What anatomy is visualized on a Swimmers Lateral C-Spine? A lateral view of C7/T1.
What position should the patient be in for an AP Axial of the C-Spine? The head is positioned until the line from the occlusal plane to the mastoid tip is perpendicular to the IR.
How much do you angle for posterior obliques of a C-spine? 15-20 degrees cephalad.
What intervertebral foramina are best demonstrated by an LPO position of the C-Spine? The Right intervertebral Foramina are seen best in this position.
What intervertebral foramina are best demonstrated by an RAO of the C-Spine? This position would best demonstrate the Right intervertebral foramina.
Where should you center for an AP Axial C-Spine? To inferior margin of thyroid cartilage (C4).
What anatomy is demonstrated on an RAO of the C-Spine? The Right intervertebral foramina are best demonstrated in this position.
What anatomy is demonstrated on an LAO of the C-Spine? Tbe Left intervertebral foramina are best demonstrated in this position.
What is the proper position for a Lateral C-Spine? Patient is erect with arms by sides; chin slightly elevated and head is lateral.
What anatomy is demonstrated on an AP Open Mouth Odontoid? Odontoid Process, lateral masses (C1) & zygapophyseal joints C1/C2.
What is the proper patient position for an AP Fuchs Odontoid? Chin elevated until tip & mastoid process are vertical.
What anatomy is demonstrated on Flexion & Extension Laterals ofthe C-Spine? Same as Lateral & to demonstrate range of motion & ligament stability ("whiplash" injuries).
What is the proper position for an AP Open Mouth Odontoid? Head positioned until line from lower margin of upper incisors to mastoid tip is perpendicular to IR when mouth is open.
What anatomy is demonstrated on a Cross-Table Lateral of the C-Spine? The same as a lateral & articular pillars (This is a trauma view).
What is the proper patient position for a cross-table lateral? Patient is Supine with arms by sides; chin is slightly elevated & head lateral.
What is the proper patient position for Flexion and Extension Laterals? Paient is erect with arms by sides; chin is hyperextended (head tilted back); chin is hyperflexed (head bent forward).
Created by: ABIGAILDRAKE1984