MSK

Question 1

osteitis deformans is also called

Answer 1

Pagets

Question 2

what is the pathology of Pagets?

Answer 2

Osteclastic activity.
abnromal and excessive new bone with vascularity

Question 3

common sites for pagets to affect

Answer 3

Skull
spine
pelvis
femur

Question 4

Pagets radiological appearance

Answer 4

Osteolysis
Cortical thickening
Loss of corticomedullary differentiation
Coarsening of trabeculae
Increased density
Bony expansion
Deformity

Question 5

Osteoclstic activity causes what?

Answer 5

resoprtion of the bone

Question 6

phases of pagets

Answer 6

Actuive phase
intermediate phase - osteblast and osteclast activity
late inactive - heavy sclerosis

Question 7

pagets in the vertebra

Answer 7

picture frame
sclerosis all the way around

Question 8

what area of sclerosis is specific to the pelvis in Pagets

Answer 8

Heavy sclerosis of the ileopectineal line

Question 9

why is sclerosis of the ileopectineal line important

Answer 9

it allows for some distinction from amlignancy

Question 10

imaging options in pagets

Answer 10

Scinitigraphy
- see burden
- also see active areas
- see a leading edge

Question 11

When comparing pagets disease to possible sarcoma on MRI what aspect of the marrow signla is important

Answer 11

in Pagets marrow signal is preserved

Question 12

complications of Pagets

Answer 12

osseous deformity
fracture
neoplastia (sarcoma)
soft tissue mass
osteomyelitis
gout
Extramedullary haematopoiesis
deg joint disease
Neural compression

Question 13

osteomyelitis in pagets - what bug

Answer 13

increased incidence of salmonella

Question 14

why gout in pagets

Answer 14

associated hypuricaemia

Question 15

with hand lesions what are the questions to be asking one self

Answer 15

Bilateral
Birth / childhood
Symptomatic

Density
Affected area
subluxations
erosiions
FHx
normal variant

Question 16

features of acro-osteolysis

Answer 16

destruction of the terminal phlaanges.
osteoporosis
hyphoscoliosis

Question 17

Bizarre Parosteal Osteochondromatous Proliferation

Answer 17

heterotopic ossification arising from, but not disrupting, the cortical bone to which it is attached.

Question 18

driller wrist

how does it occurt

Answer 18

The intense vibrations are thought to lead to microfractures allowing synovial fluid to create cysts (Fig 1). In severe cases, where occupational exposure persists, carpal fragmentation can eventually occur.

Question 19

hyper parathyroidism changes in the hands

Answer 19

subperiosteal resorption

Also resorption of the distal clavicles and lamina dura of the teeth.

Question 20

what is madelungs deformity

Answer 20

dysplasia of the radius resulting in an exaggerated radial inclination, a short forearm, dorsal dislocation of the ulnar head and a V- shaped proximal carpal row

Question 21

Melorheostosis

Answer 21

thickneing and fibrosis of overlying skin
centred on a diaphysis

Question 22

Ollier’s disease

Answer 22

non-hereditary failure of cartilage ossification leading to the presence of multiple enchondromata.

ucencies are seen in the diaphyses of long bones.

Question 23

What are the endocrine and biochemcial causes of disc calcification?

Answer 23

acromegaly
alkaptuonuria
calcium pyrophosphate dihydrate crystal deposition
hyperparathyroidism
haemachromatosis

Question 24

Which sytstemic disease causes disc clacification?

Answer 24

Amyloidosis?

Question 25

Which conditions result in immobilisaiton or fusion of the spine?

Answer 25

Poliomyelitis Ank spond Juvenile chronic arthritis Trauma

Question 26

What are the two locations for disc calcification?

Answer 26

nucleus polposus and annulus fibrosis

Question 27

Causes of nuc pulposis include?

Answer 27

Degen spondylosis ank spnd Juvenile chronic arthritis DISH Gout

Question 28

Alkaptonuria tria of

Answer 28

homogentisic aciduria arthritis ochronsis

Question 29

What is ochronosis?

Answer 29

MSK manifestations of alkatonuira. large joint arthrosis.

Question 30

How does alkatonuria and ank spond differ on lumber xr

Answer 30

If no osteophytes and intervertebral ligaments are calcified then think of alkaptonuria

Question 31

what are the different types of juvenile idiopathic arthritis?

Answer 31

Systemic arthritis Oligoarthritis Polyarthritis Enthesis related arthritis Psoriatic arthritis

Question 32

which joint is most affected by JIA

Answer 32

knee

Question 33

Osteochondrosis - what is it

Answer 33

deranged growing skeleton focal disturbanc of endochondral ossificaiton paediatric AVN

Question 34

causes of avascular necrosis

Answer 34

PLATIC RAGS pancreatitis, prengnancy lupus alcohol steroids trauma idiopathic caisson disease, collagen vascular radiation, rheumatoid amyloid arthropathy gaucher disease sickle cell disease

Question 35

causes categorised for avascular neocrosis

Answer 35

vascular interruption glboal - systemic inflammatory intraluminal emboli - local thomrubs intrinsice extrinisc

Question 36

types of osteonecrosis of the knee

Answer 36

primary secondary post athroscopic

Question 37

What is SONK / Ahlback

Answer 37

spontaenous osteonecrosis of the knee now called a subchondral insufficiency fracture

Question 38

Secondary ON affects who

Answer 38

younger patients co moribd

Question 39

location of scondary ON

Answer 39

can affect anywhere

Question 40

osteochondritis dissecans cause

Answer 40

still not known