RadPos

6/15/99

Hip

• A-P
• Internally rotate leg
• Central ray over joint
• ASIS and pubic symphisis—inguinal ligament midpoint, 1 in caudal
• 8´ 10 or 10´ 12
• include the greater trochanter
• don't have a large beam hitting the table top
• 70KvP
• beware of gonadal shielding
• breathing doesn't matter as long as hold breath

• Frog Leg—lateral view (attempt, not perfect)
• Put foot on other leg and let knee fall as far as they can
• Central ray is the same
• Technique is basically the same

• A-P Femur
• Toes straight in anatomic position
• As long as film or femur which is the longest
• 6'2" make a decision on what you are going to cut off
• measure the thick end of the thigh
• may want to filter the distal part if too thick

• Knee—4 views
• Some will be less than 12cm no bucky, over 12cm grid
• A-P
• Angle up about 10°

• lateral

• Medial condyle is longer than the lateral condyle (more weight on medial)
• Put outside portion of the knee of interest closest the film
• Same tube tilt
• May need support for the ankle to make tibia parallel to the film
• Bend of knee is critical—25-45°
• Back of pelvis is perpendicular to table top
• May need to support other knee to keep pelvis straight
• Femoral condyles should be lined up
• If tube tilt is proper, condyles at the bottom will be lined up