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Part 2 study > CTC Msk > Flashcards

CTC Msk Flashcards

1
Q

Components tfcc

A 
Ttiangular fc/articular disc t1/t2 dark
Dorsal and volar radiocarpal ligaments
Tiangular ligament-fovea and styloid
Lcl
Ulnomeniscal homologue
Ecu tendon
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2
Q

Wrist tenosynovitis

A

Infection

Ra or tb-ra starts ecu

Dequervain - washer woman
Intersection - 1 and 2 - rowers
Drummer - 3 epl

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3
Q

Shoulder dislocations signs

A

Trough sign
Rim sign
Light bulb

Luxatio erecta - inferior

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4
Q

Adhesive capsulitis

A

Fat to fibrosis in rotator interval between supra and subscap around biceps
Low t1/2
Thickened chlig or axiosry recess capsule 4mm

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5
Q

Shoulder labrum lesions

A

Slap - superior labral a to p - overhead eg swimming
Fraying - tear - full thickness - biceps anchor
Mimics - sublabral recess, foramen, buford -absent 0-3 with thickened mghl

Bankart - bony, soft, partial/incomplete
Partial bankarts:
Perthes - periodteal stripping
Glenolabral articular disruption
Anterior labral periosteal sleeve avulsion - labrum avulsed into periosteal sleeve
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6
Q

Hagl

A

Humersl avulsion GHL

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7
Q

Atrophy shoulder entrapments

A

Suprascapular - ss is
Spinoglenoid - is
Quadrangular space - tm TM humerus LHT gets tm and deltoid

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8
Q

Bisphosphonate

A

Lateral

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9
Q

Segond

A

Lateral

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10
Q

Magic angle

A

55deg t1/pd/gre. Goes away on t2

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11
Q

Dexa

A

T -1 - -2.5 paenia do frax to calculate 10yr risk hip fracture >3% rx
.-2.5 oporosis

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12
Q

Navicular

A

Kohlers

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13
Q

2nd mt head

A

Freiburg infraction

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14
Q

Calcaneal apophysis

A

Severs

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15
Q

Capitellum

A

Panners. Slightly older age get ocl

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16
Q

Femoral head

A

Perthes

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17
Q

Lunate

A

Keinbock

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18
Q

T spine

A

Scheuermann

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19
Q

Tibial tubercle inferior patella

A

Osgood schlater, sinding larsen johansson

20
Q

Ocl grading

A 
1 - oedema
2-non detached fracture
3-detached non displaced
4-displaced
5-oa
21
Q

Sequestrum

A

Lymphoma
Infection
Fibrosarcoma
Eg

Osteoid osteoma is mimic

22
Q

Fluid fluid levels

A

Telamgectatic OS
ABC
GCT

23
Q

Chordoma

A

Sacrum>clivus>c2

24
Q

Under 30 differential

A

Abc nof chondroblastoma lch solitary bone cyst

Infection - any age

25
Q

Epiphysis

A

Abc infection gct chondroblastoma clear cell chondrosarcoma

26
Q

Fd

A 
Long lesion long bone gg matrix
No periosteal rxn
No pain
Shepherd crook -also pagets/oi
If pelvis also femur
Monostotic 20s/30s poly <10 20%poly often unilat

Mccune albright - pofd, precocious puberty, cafe au lait
Mazabraud - pofd, soft tissue myxomas

T1 low
T2 high on background t2 low
Active enhance

Long bones skull ribs

Abnormal osteoblasts lay down immature bone

0.5% osteo>fibro>chondrosarc

27
Q

Nof

A

Spindle cells <20 around knee and disteal tib
<2cm fcd >3nof
Cortical sclerotic border

28
Q

Enchondroma

A

Any age
Chondroid matrix
T1 dark t2 bright

Ollier - muotiple enchondromas, slight increased risk malignant
Mafucci - multiple enchondromas and haemangiomas and probably higher risk cancer

?chondrosarc - >4-5cm, >2/3thick periodteal scalloping, pain, chamging matrix

29
Q

Lch

A

85% <30
Histiocytes some monocolonal some polyclonal ?reactive
Flat bones>long bones>spine. Favours VB - plana
M2f1 caucasians
Vertebra plana, bevelled edge skull with sequestrum, floating tooth classic

Letterer siwe - acute disseminated hepatosplenomagsly, LN, rash 10%
Hans schueller christian chronic disseminated hsm, ln, diabetes insipidis, pilmonary fibrosis 20%
70% osseous or pulmonary

30
Q

Vertebra plana

A

Imelt

Infection mets myeloma eg lymphoma trauma tb

31
Q

Sequestrum

A

Lymphoma infection fibrosarcoma eg

32
Q

Gct

A

20-30
Closed physis, non sclerotic margin, abuts articular surface
5% malignant, met to lung. 25% recur, prognosis in recurrence worse

33
Q

Osteoid osteoma

A

M2f1 10-25 metadiaphysis long bones classic femoral neck 10% posterior elements spine.
>2cm osteoblastoma
Double density bonescsn
T1 dark t2 bright enhances
Lucent nidus surrounded by sclerotic reaction

34
Q

Lucent lesion posterior elements

A

Bam

OsteoBlastoma, abc, met

35
Q

Classic solitary bine cyst

A

Humerus calcaneus , 90% tubular bones mostly humerus femur

Age under 30

36
Q

Brown tumour

A

Giant cells and fibrous tissue

37
Q

Chondroblastoma

A 
Epiphysis skeletally immature
50% chondroid matric
Sclerotic rim
Eccentric
Can have periosteal reaction
T1 low t2high or low
10-25 m>f can have sec ABC
38
Q

Cmf

A

Age under 30 large range
Bubbly sclerotic rim eccentric metaphysis +/- epiphysis
Differential for abc, gct

39
Q

Gt
Lt
Intertroch classics

A

Gt - aigc esp c
Lt - met
Intertrochh - lipoma, fd, ubc

40
Q

Calcaneus

A

Abc - no its UBc/lipoma - fat, fallen fragment or fat necrosis calc anterior body
Infection usually posterior
Gct/c/osteoid osteoma superior

41
Q

Blastic met

A

Prostate breast carcinoid medullo

42
Q

Lytic met

A

Rcc thyroid

43
Q

Poems

A 
Polyneuropathy organomegaly (hs) endocrinopathy m protein 
Sclerotic or mixed bone lesions
44
Q

Pagets

A 
Blade of grass
Cotton wool
Osteoporosis circumscripta
Tam o shanter
Picture frame and ivory vertebraesaber shin
Banana fracture
45
Q

Tibial bowing

A

Physiologic between 18months and 2 years apex lateral / varus
Blounts varus
Rickets or hypophosphatasia apex lateral
Abnormal intrauterine positioning, foot deformitis - apex posterior

Nf1 apex anterolateral, my have hypoplastic fibula or pseudoarhtrosis

Part 2 study (12 decks)

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