Flashcards in 44: Radiographic Interpretation - Bennett Deck (41)
Loading flashcards...
1
which measurements are seen in sagittal plane?
- calcaneal inclination angle
- lateral talocalcaneal angle
- talar declination angle
- first metatarsal declination angle
- inter-relationship of radiographic angles and their importance in the interpretation of biomechanical relationships associated with podiatric radiographs
2
talocalcaneal angle aka
angle of kite
- used to evaluate flatfoot deformity
3
transverse plane angular relationship of the longitudinal bisectors of talus and calcaneus
talocalcaneal angle
4
normal talocalcaneal angle values ***
0-5 yo: 35-50 degrees
5- adult: 15-35 degrees
5
STJ pronation ____ the talocalcaneal angle. STJ supination ______ the talocalcaneal angle
- increases (everted heel)
- decreases
6
a measure of the most lateral surface of the cuboid and the calcaneus
cuboid abduction angle
- indicative of deformity in the transverse plane
7
normal cuboid abduction angle
0-5 degrees
8
pronation leads to ________ cuboid abduction angle
increased
9
gives relative position of the forefoot to the rearfoot in the transverse plane
metatarsus adductus angle
- angle is composed of a bisection of the lesser tarsus and bisection of the second metatarsal
10
normal metatarsus adductus
0-15 degrees
11
metatarsus primus adductus angle
- representation of deviation of first met relative to second
12
normal and adductus metatarssu primus adductus angle
normal 8-12
adductus 8-10
13
evaluation of 1st intermetatarsal angle
- evaluation of hallux abducto valgus
- size of measurement will determine type of procedure you choose to do
14
tibial sesamomid position
- change in sesamoid position relative to bisection of first met head
- 7 positions
- position 1-3 are normal
15
representation of transverse plane position of hallux relative to long axis of the first metatarsal
hallux abductus angle
- quantifies the alteral deviation of the hllux in HAV
16
normal hallux abductus angle
10-15 degrees
17
hallux interphalangeal angle
- represents the lateral hallux deviation at the level of the IP joint
- increases in this value produce a lateral curvature of the hallux which become clinically significant
18
normal hallux interphalangeal angle
0-10 degrees
19
PASA proximal articular set angle
- representation of effective cartilage in relation to the shaft of the metatarsal
- bisection of met and line through articular cartilage line
20
normal PASA
7.5 degrees
- increase is pathological and may either add to a structural or combined deformity
21
normal DASA
7.5 degrees
22
this angle measures the relationship of the effective articulating cartilage of the base of the proximal phalanx
distal articular set angle DASA
23
measurement difference in length b/w first and second mets
metatarsal protrusion distance
- impacts on the procedure one does fro bunion correction if the 1st met is short (most common)
24
normal met protrusion distance
plus minus 2 mm
25
measurement of sagittal plane position of the clacaneus referenced to the plane of support
calcaneal inclinationa ngle
26
normal calcaneal inclination angle
18-21 degrees
27
what decreases and what increases calcaneal inclination angle?
- decreased with pes plano valgus
- increased with cavus foot type
28
a measurement composed of column tali axis and the plane of support
talar declination angle
29
normal talar declination
21 degrees
30
