Lower Limb

Question 1

typical lower limb sites of impacted #s

on xray appears

Answer 1

femoral neck
tibial plateau
calcaneus
sclerotic

Question 2

for all polytrauma mode of imaging is

Answer 2

CT

Question 3

if pelvis is the sole site of injuring imaging =

Answer 3

xray

Question 4

Ix of choice for low E (elderly osteoporotic) pelvic fractures

Answer 4

MRI

Question 5

typical sites that low E pelvic #s affect

Answer 5

sacrum and pubic rami

Question 6

imaging that shows acute injury to superficial soft tissue

Answer 6

US

Question 7

Best Ix for pelvic soft tissue injury

what can it show

Answer 7

MRI

blood/fluid in torn tendons

Question 8

hip usually dislocates ___ with a ___ #

imaging for Sx planning =

Answer 8

posteriorly
pelvic rim #
CT

Question 9

intracapsular proximal femur #s interfere with ___ and so prone to +
Rx =

Answer 9

blood supply
AVN+non union
hemiarthroplasty (if young and undisplaced = reduce and screw fixate)

Question 10

extracapsular proximal femur # Rx =

Answer 10

internally fixate with DHS

Question 11

lipohaemarthrosis under patellar/quad tendon is a sign of

Answer 11

intra articular #

Question 12

80% of tibial plateau #s affect ___ after ___ force with foot ___

Answer 12

lateral condyle
valgus
planted

Question 13

tibial plateau fractures imaging =

Answer 13

CT

Question 14

extensor mechanism injuries imaging =

Answer 14

US

Question 15

for acute knee trauma eg. meniscal tears, undisplaced #s, ligament and hyaline cartilage injury imaging =

Answer 15

MRI

Question 16

spiral # of prox 1/3 of fibula + tear of distal tibiofibular syndesmosis and interosseous membrane + medial malleolus #/deep deltoid lig rupture =

Answer 16

Maisonneuve #

Question 17

talar dome margin # are caused by excessive __/__

Answer 17

in/eversion of ankle

Question 18

5th MT base # tend to be ___ #s
caused by ___
seen on __ xray

Answer 18

transverse
inversion
lateral

Question 19

calcaneal # mechanism of injury =

Answer 19

axial compression

Question 20

measure the central peak of the calcaneus using ____

Answer 20

Bohler’s angle

Question 21

fracture mimic in the 5th MT

which age group

Answer 21

5th MT longitudinal accessory ossification centre

adolescence

Question 22

fracture mimic in calcaneus

which age group

Answer 22

fragmented accessory ossification centre on posterior calcaneus
kids

Question 23

fracture mimic that is often visible posterior to distal femur

Answer 23

fabella = sesamoid bone in lateral head of gastroc

Question 24

fracture mimic often seen posterior to talus

Answer 24

os trigonum - accessory ossification centre

Question 25

rounded sesamoids in the foot are almost invariably seen on __+___ of ___ head

Answer 25

medial and lateral plantar aspect of 1st MT head

Question 26

imaging of ankle tendon injury that is easier for ptnts and allows dynamic testing

Answer 26

US

Question 27

Lisfranc #s are best shown on what imaging

Answer 27

CT

Question 28

groups at risk of knee extensor mechanism injury

Answer 28

middle age runners and jumpers steroid/abx users diabetics

Question 29

signs of knee extensor mechanism injury seen on xray =

Answer 29

effusion/displaced patella

Question 30

Rx for knee extensor mechanism rupture =

Answer 30

Sx repair and physio

Question 31

traction apophysitis at the tibial tubercle (patellar tendon insertion) =

Answer 31

Osgood-Schlatter's

Question 32

Osgood Schlatters tends to affect this group of people = | leaves a ___

Answer 32

adolescent active male | prominent bony lump

Question 33

increases risk of achilles tendon rupture (3)

Answer 33

RA, steroids, tendonitis

Question 34

+ve Simmonds test = | for __

Answer 34

lie patient on their front and squeeze calf => no plantarflexion Achilles tendon rupture

Question 35

Ix for achilles tendon injury =

Answer 35

US/MRI

Question 36

Rx for achilles tendon tear =

Answer 36

plaster/ Sx repair

Question 37

Tibialis posterior rupture progression: | ___>progressive ___> rupture > progressive ___ + __

Answer 37

tenosynovitis elongation flat foot + valgus hindfoot

Question 38

Rx for tibialis posterior

Answer 38

NSAIDs cast inject debrids may => tendon transfer