lower centering Flashcards
to learn how to center, Collimate, and use correct technical factors
Toes
AP
(collimation)
1 inch proximal to MTP joint
(centering)
*3rd MTP joint
Toes
AP axial
(collimation)
1 inch proximal to MTP joint
(centering)
*15 degrees
*3rd MTP joint
Toes
Oblique
(collimation)
1 inch proximal to MTP joint
(centering)
*3 MTP joint
*rotate 30-45 degrees
toes
LAT
(collimation)
1 inch proximal to MTP joint
(centering)
*at PIP joint
*1-2 toes turn medially
*3-5 turn latterly
Sesamoids
Lewis Method
and holly
(collimation)
* 3x3
(centering)
* tangential to first MTP
foot
AP
(collimation)
1 inch on all side of the foot
(centering)
*base of 3 meta tarsal
foot
AP axial
(collimation)
1 inch on all side of the foot
(centering)
*base of 3 meta tarsal
*10 degree angle
foot
oblique
(collimation)
1 inch on all sides
(centering)
*base of 3 meta tarsal
*rotate foot 30 degrees
Foot AP
weight bearing
(collimation)
10x12
(centering)
* base of 3 metatarsal (both feet)
*angle 10 or 15
(10 is preferred but do 15 if they cant stand straight)
SID is 48
foot
LAT
(collimation)
*1 inch on all sides
*1 inch proximal to medial malleolus
(centering)
base of 3 metatarsal
calcaneus
plantar dorsal
(centering)
*entering the plantar surface near the base of 3rd MT
*40 degrees cephalad
(collimation)
*1 inch on all side from calcaneus
*include 5 metatarsal base (tuberosity)
calcaneus
dorsal plantar
(centering)]
*40 degrees caudad
*entering dorsal surface of ankle joint
(collimation)
*1 inch on all side from calcaneus
*include 5 metatarsal base (tuberosity)
(OS CALCIS)
LAT
(centering)
*at the subtalar joint.
*1 inch distal to medial malleolus
(collimation)
*1 inch above and below the heel
*Include medial malleolus and base of the fifth metatarsal