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