Lower Limb Exam Ch 6 Flashcards
60 questions review
Exam Review:
For an AP stress study for an ankle, what would we not do to the foot?
Demonstrate a ligament tear
Rupture ligament
inversion/eversion
demonstrate a fracture of the tib fib
Not move the foot around due to the fracture of the Tibia and fibula
we would look at the ligaments
Exam Review:
What is the difference between a mortise and an oblique ankle?
Mortise is rotated 15-20 degrees medially
Oblique ankle is rotated 45 degrees
Exam Review:
Which rotation has the intermalleolar line parallel to the IR?
AP Mortise ankle
15-20 degree internal/medial rotation
Exam Review:
What type of joint is the ankle?
Saddle or sellar Joint
Exam Review:
Which Malleoli is superior?
Medial Malleoli
Exam Review:
Which tarsal bone makes up the mortise?
Talus?
Exam Review:
What is the CR for calcaneus?
Is it Cephalic or Caudad?
40 degrees Cephalic to the long axis of the foot
CR is at base of third metatarsal
Exam Review:
When you are positioning for a trauma lateral ankle what is necessary?
A. Ensure the plantar surface is in complete contact of the IR
B. Rotate the leg laterally so the leg is against the table
C. Ensure the plantar surface is perpendicular to the IR
D. Plantarflex the foot
C.
Ensure the plantar surface is perpendicular to the IR
Exam Review:
When the patient is standing with the metatarsals of the foot in 90 degrees to the leg with a horizontal beam entering the lateral malleolus, which of the following of the weight-bearing projections?
Standing Lateromedial projection
(key: CR is entering in the lateral malleolus)
Exam Review:
In the axial calcaneus the plantar surface of the foot should be ____ to the image receptor?
Perpendicular
Exam Review:
The most posterior part of the calcaneus would be?
A. Sinus Tarsi
B. Tuberosity
C. Trochlear
D. Peritoneal
B. Tuberosity
Exam Review:
How many views for the calcaneus?
What are the names?
2 views
Plantodorsal Axial Calcaneus
Lateral Calcaneus
Exam Review:
When performing a lateral for the 2nd digit, what side should be closest to the Image receptor?
Why?
Medial side
To reduce OID
Exam Review:
Where is the sustentaculum tali?
medial proximal calcaneus
Exam Review: What does the medial cuneiform articulate with distally?
First metatarsal
Exam Review:
What does the metatarsal articulate with distally?
proximal phalanx
Exam Review:
Medial oblique foot would show:
sinus tarsi free of superimposition
(also cuboid)
Exam Review:
What do the heads of the metatarsal articulate with distally?
proximal phalanx
Exam Review:
Where are the sesamoid bones located?
plantar surface of the first metatarsal
Exam Review:
What is Pes planus?
Flat foot
Exam Review:
What does the base of the metatarsal articulate with?
Tarsals
Exam Review:
If we are looking at a lateral foot, all of these are correct except for?
A. We include at least one inch of the distal tibia fibula
B. we want to visualize the foot from digit to calcaneus
C. The cuboid is free of superimposition
D. The heads of the metatarsals are superimposed
C.
The cuboid is free of superimposition
(we only see the cuboid slightly free of superimposition in mediolateral)
Medial oblique shows the cuboid free of superimposition
Exam Review:
If we are looking for a foreign body do we angle the central ray?
Why?
No.
An angle can distort the object and elongate it
Exam Review:
T/F
*The image critique for an oblique foot with lateral rotation we want to see the sinus tarsi free of superimposition.
False
(medial oblique would show the sinus tarsi)
Exam Review:
If the patients foot cannot be flat for an AP projection, what would we do?
What is the angle?
We would use a wedge
No angle for this
Exam Review:
How many tarsal bones are in the foot?
7 tarsal bones
Exam Review:
*The lateral oblique foot best shows?
The base of the first metatarsal
Exam Review:
In the AP projection of the ankle the:
1. Plantar surface is perpendicular to the IR
2. The Fibula projects more distally than the tibia
3. The calcaneus is well-visualized
1 & 2
Exam Review:
AP ankle the plantar surface is ____ to the IR?
Perpendicular
Exam Review:
Lateral foot the plantar surface is ____ to the IR?
How about standing?
Perpendicular supine
Parallel for standing
Exam Review:
The second metatarsophalangeal joint is what kind of joint?
ellipsoid or condyloid
Synovial
Diarthrodial (freely moveable)
Exam Review:
Which of the following joints is a fibrous syndesmosis Amphiarthodial (slightly moveable) joint?
A. Proximal interphalangeal
B. Talonavicular
C. Proximal tibiofibular
D. Distal Tibiofibular
D.
Distal Tibiofibular
Exam Review:
When would you best see a medial displacement fracture?
(bone protruding towards medial side)
AP view
Exam Review:
If there’s a posterior displacement, what view would best display that?
Lateral
Exam Review:
What is the name of the fracture for the base of the fifth metatarsal?
Jones or nightstand fx
Exam Review:
What joint is most affected by gout?
First MTP joint
Form of arthritis (execessive blood in joint) that may be hereditary
Exam Review:
What is the Don Juan fx?
fx in the calcaneus
Exam Review:
Osgood Slatter is?
inflammation of bone/cartilage of anterior proximal tibia (tibial tuberosity)
most common in boys 10-15
Exam Review:
Inversion:
AKA?
Inward turning/bending of the ankle
aka Varus
Exam Review:
Eversion:
AKA?
outward turning/bending of ankle
aka valgus
Exam Review:
Dorsiflexion:
Dorsal/anterior surface of foot flexed upwards
Exam Review:
Plantarflexion:
Posterior/Sole of foot is flexed downwards
(tippy toes)
Posterior foot name:
Plantar surface
Sole of foot