Chapter 6 Lower Limb

What is the most common fracture site in the foot?

The PROXIMAL portion of the 5th metatarsal

The smallest tarsal bone is

intermediate cuneiform

Where should the CR be in the projection of toes?

at the affected MTP joint

How many bones in the foot?

26

CR on foot?

TMT Tarsometatarsal joint

plantar flexion

Extending the ankle or pointing the foot and toes downward

dorsiflexion

decreasing the angle between the dorsum pedis and anterior lower leg

inversion (varus)

inward turning or bending of an ankle

eversion(valgus)

onward turning or bending of an ankle

What projection of the foot has a an angle of the tube?

AP

How much angle in CR an AP foot and what direction?

10 degrees caudal (posterior)

What must be seen on lateral foot?

tuberosity of 5th metatarsal ; min. 1 in of tib fib

What must be seen on a calcaneus ?

entire calculus from tuberosity posteriorly to talcocalcaneal joint anteriorly

what is the lateral ankle position

distal fibula over posterior half of tibia

what must be shown in an AP Tib Fib

femoral and tibial condyles in profile with intercondylar eminence centered within the intercondylar fossa

What must be shown in a lateral tib fib

tibial tuberosity on profile

CR angles for each body type on an AP knee

5 caudad for thin ppl, 0 for average ppl, 5 cephalic for thick ppl

Differences. of condyles showing in internal oblique knees and external oblique knees

internal have lateral condyles of the femur and tibia well demonstrated

external have medial condyles of the femur and tibia are demonstrated

the 2 pa axial intercondylar fossa views

camp coventry(laying down with feet elevated w/ sponge) and homblad (kneeling down)

diathrodial vs amphiarthrodial

diarthrodial(freely movable) amphiarthrodial(slightly movable)

sustentum tali is found on the

calcaneus

articular facets making up the tibial plateau slopes posteriorly at

10 to 20

another term for the patellar surface of the distal femur is

intercondylar sulcus

what would best demonstarate a lisfranc injury

ap weight bearing projection

how much cr angle for plantodorsal projection of calcenus

40

how much is ankle rotated for AP mortise

15