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L-Spine

Positioning of the Spine for XRAY Exams

QuestionAnswer
What is the proper patient position for an AP L-Spine? Patient is supine, with both knees flexed to flatten the lumbar curvature.
Where do you center for a Cross-Table Lateral L-Spine? The beam is horizontal, and perpendicular to the IR, entering at the level of the iliac crest.
What anatomy is demonstrated on Bending AP's of the L-Spine? Same anatomy as regular AP's and also demonstrates range of patients motion, and effects of scoliosis.
What is the proper positioning of a patient for flexion & extension laterals? Patient is erect with no shoes; torso is hyperextended (body tilted back); or torso is hyperflexed (body bent forward)
Where do you center for a Lateral L-Spine? Center perpendicular to IR; enters at level of iliac crest (14x17) or 1.5" above iliac crest (11x14)
What anatomy is demonstrated on an AP L-Spine? Vertebral bodies & Intervertebral joints ot T11-L5, sacrum, transverse processes
Where should you center for Obliques of the L-Spine? Center perpendicular to the IR; enters at the level of the iliac crest but 2" medial to the ASIS
What is the proper position for a Lateral L-Spine? Patient lateral, recumbent, flex knees & hips; arms 90 degrees to body.
What is the proper patient position for Obliques of the L-Spine? Posterior (RPO/LPO) body is rotated 45 degrees; knees flexed & arm across chest.
Where should you center for an AP L-Spine? CR is perpendicular to the IR; enters at level of iliac crest (14X17) or 1.5" above iliac crest (11x14)
What anatomy is demonstrated on a Lateral L5/S1 Spot? "Box-like" L5, "open" L5 intervertebral joint, greater sciatic notches superimposed.
What is the proper patient position for Bending L-Spine APs? Patient is erect with no shoes, patient in lateral flexion (R&L)
What anatomy is demonstrated on a Lateral L-Spine? "Box-like" vertebral bodies, spinous processes, intervertebral joints & intervertebral foramina L5/S1, sacrum.
What is the proper patient position for a Lateral L5/S1 Spot? Patient is lateral recumbent, flex both knees & hips, arms 90degrees to body.
What anatomy is demonstrated on a Cross-Table Lateral? The same as a regular lateral, this is a trauma view.
What anatomy is demonstrated on Flexion and Extension Laterals? The same as Lateral & to asess mobility (often after spinal fusion).
What anatomy is demonstrated on an RPO of the L-Spine? Right zygapophyseal joints are best demonstrated on this position. "Scotty dog" -- Pedicle= the eye Superior Articular process=Ear Inferior articular process=Foot Transverse process=Nose Pars Interarticularis=Neck/Collar
What is the proper position for a Cross-Table lateral L-Spine? Patient is Supine; arms are raised over head.
Where should you center for a Lateral L5/S1 Spot? The CR is angled 5-10 degrees caudal and enters 1.5" inferior to the iliac crest & 2" posterior to the ASIS
What anatomy is demonstrated on an LPO of the L-Spine? Left zygapophyseal joints are best demonstrated on this position. "Scotty dog" -- Pedicle= the eye Superior Articular process=Ear Inferior articular process=Foot Transverse process=Nose Pars Interarticularis=Neck/Collar
Where should you center for both Bending AP's and Flexion/Extension Laterals? The CR is perpendicular to the IR; IR is placed 1"-2" below the level of the iliac crest.
Created by: ABIGAILDRAKE1984