positioning Flashcards
Centering for AP scapula
Mid-scapula (2 inches inferior to coracoid process & 2 inches medial from lateral border)
CR centering for lateral scapula
Midvertebral border of scapula
CR angle and patient rotation for uni/bilateral AC joints
Both perpendicular, both patient against wall Bucky
CR centering for uni/bilateral AC joints
Unilateral = 1 inch below affected AC joint
Bilateral = 1 inch above jugular notch
PA Patella CR angle and centering
PA projection, predicate to mid-patella/mid-popliteal
Lateral patella CR angle and centering (per Bontrager )
Perpendicular, midpatellofemoral joint
Plantodorsal (Axial) Calcaneus CR angle and centering
40 degrees to long axis of foot, base of the 3rd metatarsal
What can you do for a plantodorsal (axial) calcaneus if the foot is not flexed a full 90 degrees?
Increase angle to greater than 40
Lateral calcaneus CR angle and centering
Perpendicular, 1 inch inferior to medial malleolus
Patient position for Judet Method hips
45 degree oblique
CR angle/centering for Judet hips (downside). What will this visualize?
CR angle = perpendicular
Centering = 2 inches distal & 2 inches medial to downside ASIS
Visualizing = iliac wing elongated, obturator foramen closed, anterior rim of acetabulum
CR angle/centering for Judet hips (upside). What will this visualize?
CR angle = perpendicular
Centering = 2 inches distal to upside ASIS
Visualizing = iliac wing foreshortened, obturator foramen open, posterior rim of acetabulum
With Judet Hips, the entire pelvis should be seen for _________ (as opposed to ______)
Entire pelvic ring, acetabulum only
AP Sacrum CR angle and centering
15 cephalic, 2” superior to pubic symphysis
AP Coccyx CR angle and centering
10 caudad, 2 inches superior to pubic symphysis
Lateral sacrum/coccyx CR angle and centering
Perpendicular, 3-4 inches posterior to upside ASIS
L5-S1 CR angle and centering
Perpendicular to 5-8 caudad, 1.5 inferior to iliac crest & 2 inches posterior to ASIS
AP SI Joint CR angle and centering
30 (males) - 35 (females) cephalic
2 inches below ASIS
Oblique SI joint CR angle, patient obliquity, and centering
Perpendicular, patient 25-30 deg oblique, centering 1 inch medial to upside ASIS
PA SC Joint CR angle and centering
Perpendicular
level of T2-T3 (~3 inches distal to vertebral prominens)
Oblique SC joints CR angle and centering
Perpendicular
lateral to level of T2-T3 (~3 inches distal to vertebral prominens) & 1-2 inches lateral to elevated side
With SC joints, you center to the (upside/downside) to visualize the (upside/downside) joint
Upside, downside
With SI joints, you center to the (upside/downside) to visualize the (upside/downside) joint
Upside, upside
With SC joints, an LAO will visualize the (left/right) joint. Would you center on the left or right?
Left, center on right (upside)
With SI Joints, an LPO will show the (left/right) joint. Would you center on the left or right?
Right, center on right side
Patient position for oblique SC joints
10-15 degrees
Patient position for oblique SI joints
25-30 degrees
Patient position for sternum (non lateral)
15-20 degrees RAO
RAO Oblique Sternum CR angle and centering
Perpendicular, 1 inch to the left of midline b/t jugular notch and xiphoid process
Respiration for AC joints
Suspend
Oblique C-Spine LPO will demonstrate the (right/left) foramina
Right
Oblique C-Spine RPO will demonstrate the (right/left) foramina. Would you use a cephalic or caudal angle?
Left; cephalic
Oblique C-Spine LAO will demonstrate the (right/left) foramina
Left
Oblique C-Spine LAO will demonstrate the (right/left) foramina
Left
Oblique C-Spine RAO will demonstrate the (right/left) foramina. Would you use a cephalic or caudal angle?
Right; caudad
