RAD143 CH.6 LOWER LIMB TIB/FIB ANKLE TOES & FOOT & KNEE
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where are sesamoid bones embedded into
tendons

what are all the tarsal bones of the foot
 calcaneus
 cuboid
 cuneiform (3)
 navicular
 talus

what is the tarsal bone mnemonic
 Come = Calcaneus
 To = Talus
 Colorado = Cuboid
 Next = Navicular
 3 Christmases = 3 Cuneiforms

where are the three cuneiform bones located
at the base of the first second and third metatarsal

on a true lateral position what two bones are superimposed over each other
distal fibula is superimposed over posterior half of tibia on a true lateral

what is the longest and strongest bone
femur

what is the angle of distal medial and lateral condyles on a femur
57 degree

how many degrees is the CR angled posterior to MTP joint for an ap of the toe
10 15 degrees posterior to the mtp joint

what are the routine positions for AP toes
ap oblique and lateral

what other bone must we include when taking an xray of the ap toes
minimum of distal 1/2 of metatarsal demonstrated

where is the CR for the first digit of the toes
IP = interphalangeal joint

what are the routine positions for a foot
ap oblique lateral

where is the CR for an AP foot and how much angle is on the tube
base of 3rd metatarsal and angled 10 degrees posteriorly(toward heel) w/ CR perpendicular to the metatarsals

where is the CR and angle of the foot for an oblique foot medial rotation
 base of third metatarsal
 and 3040 degree medial rotation of the foot (inwards)

what is a common trauma site for the foot
base of the fifth metatarsal

how many bones are there in the foot and describe all
 26 total
 14 phalanges
 7 tarsals
 5 metatarsals

what is the joint that articulates with the base of every toe
metatarsophalangeal

where are sesamoid bones usually found on the foot
on the plantar surface at the head of the first metatarsal

what is the largest and strongest bone of the foot
calcaneus

the sustentaculum tali is found on the
calcaneus

where is a common site for bone spurs
the tuberosity on the bottom of the calcaneus

the articular facets making up the tibial plateau slopes posteriorly at:
1020 degrees

another term for the patellar surface of the distal femur is
intercondylar sulcus

the knee joint is classified as a what joint
bicondylar

where is the CR for a mediolateral projection of the foot
CR to medial cuneiform

which lateral rotation is best for a lateral view of the foot
mediolateral

where would we CR be for an ap toes of the second phalanx
cr on long axis of the toe and CR at MTP joint of 2nd toe

the oblique positioning of what toes is need for external rotation (lateral rotation)
4 and 5 digit

what digits require medial rotation for an oblique of the toe
digits 1 2 3

where is the CR for a lateral toe of the first digit
IP joint

where is the CR on a lateral position of the toes for digits 25
PIP joint

An ap projection of the toes requires all toes in view?
yes but collimate to digit in question or depends on hospital policy

where is the CR and position of the toes when doing oblique position
what is the angle of tube
 the CR is perpendicular to the to mtp joint
 no angle on tube
 toes are positioned on a medial or external rotation depending on which toe

when taking an xray of the calcaneus where is the CR and angulation of the tube
CR is at the base of the third metatarsal to emerge posterior malleoli(lateral) and the cr is angled 40 degrees cephalad

what are the routine positions for the calcaneus

where is the cr for a lateral calcaneus (mediolateral projection)
1 inch inferior to medial malleolus

how do we know the patients foot is in a true lateral
when the lateral malleolus about cm posterior to the medial malleolus

What is the kv and cr for an ankle
what should we not ask the patient to do in the position
 60 kv and + or  5 kv
 cr mid ankle include up metatarsals and some of the distal tib and fib
 do not force dorsiflexion (keep foot in natural position and ensure no rotation

What is the degree of angulation of the ankle in ap mortise
what is parallel to the IR
1520 degrees until intermelleolar line is parallel to IR

what is the rotation and degree of angulation in a oblique position of the ankle
 internal rotation
 and 45 degree oblique

what is the position of the feet when doing a tib fib ap
dorsiflexed 90 degrees if possible

how do we know or ensure that the tibia and fibula are in a true lateral position
the patella plane should be perpendicular to to the IR

what is the the kv range and mas for clacaneus
70 @ 16

what is the tech factors for a lateral calcaneus
60 @ 3.2

where is the CR for an ap and oblique ankle
midway between medial and lateral malleoli

what is the joint or joint space that articulates with the distal tibia and talus
tibiotalar joint

an ap of the ankle shows all views of the ankle except what?
the lateral portion

where is the CR for a mediolateral projection of the foot
cr perpendicular to medial cuneiform

what is the routine protocol for a tib and fib
how much dorsiflexion of the foot is needed if possible for an ap projection of the tib/fib
how much of both joints must be included in the ap and lateral
 ap and lateral
 90 deg
 12 in

how do we determine a true lateral of the tib/fib and where is the cr
 plane patella should be perp to IR
 midpoint of leg per to IR