Foot, Calc and toes

Question 1

Parts of the forefoot

Answer 1

Metatarsals and phalanges

Question 2

Parts of hindfoot

Answer 2

Calc and talos

Question 3

Where is the lisfranc joint?

Answer 3

Between MT and phalanges

Question 4

Where is Chopart line?

Answer 4

Between the talus and cuboid + navicular

Question 5

Which foot joint does inversion and eversion occur at?

Answer 5

Subtalor joint

Question 6

What is the opening that allows for the passage of ligaments, at the sub talor joint called

Answer 6

Sinus Tarsi

Question 7

Sesamoind bones of foot

Answer 7

Commonly paired, visualised on plantar aspect of head of
1st metatarsal
– Can be visualised elsewhere & multiple

Question 8

Os triganum Tarsi

Answer 8

– Present in 25% of children & often bilateral

Question 9

• Separate navicular ossification site

Answer 9

– Seen in 5% of children

Question 10

• Calcaneal Apophysis

Answer 10

Fragmented, irregular and more dense than normal

calcaneus

Question 11

What is a bilateral dorsi-plantar projection typically done for?

Answer 11

Osteotomy

Question 12

What is a bilateral foor projection typically done for ?

Answer 12

Pes Planus (flat foot)

Question 13

Where do sub-talor dislocations typically occur at?

Answer 13

Medially 56% and laterally 34%

Question 14

Difference between talor and sub talor dislocation?

Answer 14

Talur is entire joint dislocation

Question 15

another name for Tarsometatarsal Fracture

Dislocation

Answer 15

lisfranc

Question 16

Jones Fracture

Answer 16

Transverse fracture of
the base of the 5th
metatarsal

Question 17

STRESS FRACTURES

Answer 17

Metatarsals - March Fracture
– Majority involve 2nd & 3rd metatarsals
• Tarsals
• Calcaneus
– Nearly as common as metatarsals
• Plain radiographs normal in acute phase
• Plain film changes
– Fluffy periosteal new bone
– Subtle fracture line
– Band of sclerosis
• Nuclear Medicine

Question 18

noticble areas for RA in foot

Answer 18

MTP Joints, particularly
5th
• IP Joint 1st toe

Question 19

Typical signs of OA in foot

Answer 19

MTP joint 1st toe
affected
• Hallux valgus deformity

Question 20

Gout

Answer 20

Extrinsic periarticular bony erosions
with a distinctive lip of bone at the
edge
• Interosseous cystic lesions
• Normal bone density
• In late stage joint space narrowing

Question 21

HALLUX VALGUS DEFORMITY

BUNIONS

Answer 21

Lateral deviation of
1st toe
• Bilateral AP weight
bearing
• Bunion –
inflammation of the
bursa

Question 22

KOHLERS DISEASE

Answer 22

AVN of tarsal navicular
• Pain and flatfoot
• Navicular appears sclerotic,
irregular and fragmented

Question 23

OSTEOMYELITIS

Answer 23

Inflammation of the bone
and bone marrow
• Infection caused by
penetrating wounds,
fractures, surgery,
haematogenous spread
• Absorption of necrotic
bone