Ortho stuff Flashcards

1
Q

Soap bubble

A

Adamantanoma

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2
Q

Polyostotic bone lesion

A
OC 
Enchondroma 
Fibrous dysplasia 
GCT
Ewing’s
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3
Q

Radio resistant

A

OS
CS
Malignant fibrous histiocytoma

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4
Q

Upper end of humerus

A

UBC > CB

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5
Q

ABC

A

Lower metaphysis of tibia femur

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6
Q

Osteoid osteoma

A

Femur then tibia

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7
Q

Ivory Osteoma

A

Face and skull

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8
Q

Enchondromas

A

Hand bones

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9
Q

Adamant

Amelo

A

Adam- tibia

Amelo- mandible (scc)

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10
Q

MM

Mets

A

MM - Lumbar vert

Mets - dorsal thoracic vert

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11
Q

Purely BLASTIC

A

PCMB

Prostate
Carcinoid
Medulloblastoma
BASTIC

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12
Q

Mc primary

A

Breast females
Lungs makes
Children - neuroblastoma

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13
Q

Bone to bone mets

A

BONE

OS
Neuroblastoma
Ewing’s mc

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14
Q

Simple bone cyst

“Fallen leaf 🍃 sign”

A

BEECH

Brodies. Brown tumor 
Eosinophilic granuloma 
Enchondroma 
CB
Haemophilia
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15
Q
Single cavity in metaphysis 
1st decade 
Upper humerus 
Central concentric 
Straw color
A

UBC

Curettage and BG

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16
Q
Multiloculated 
Eccentric 
Tibia LL 
Fluid fluid level 
More expansile 
Hemorrhagic fluid
A

ABC

Extended curettage

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17
Q

Eccentric tumor

A

NAG Expands

NOF
ABC
GCT

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18
Q

Large to feel small on X-ray
Pain bursitis and #
Diaphysial aclasis
?malig

A

Osteochondroma

Extraperiosteal resection

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19
Q

Mc true benign lesion
Night pain 😌 on salicyclates
NIDUS in cortex
Osteoblasts and clasts

A

Osteoid osteoma

RFA

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20
Q

Compact osteoma
Skull and face
Eburnated

A

Ivory osteoma

No Rx

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21
Q

Codmans tumor
Epiphysis
Calcification +
Mc upper end humerus

A

CB

Extended curettage

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22
Q

Mc benign lesion bone
1st decade
Metaphyseal
Self healing no malig potential

A

NOF/Fibrous cortical defect

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23
Q

Mc tumor of bones of hands and teeth
Hyaline cart
5% premalig

A

Enchondroma

Extended curettage

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24
Q

Olliers

Maffauci

A

Ollier - Only enchondromas

Maffauci- many things along with enchondroma + hemangioma + phleboliths
100% premalig

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25
Q

Malignant cell is mononuclear cell
Mets to lungs
More in Girls
Goes to joint

A

GCT

Extended curettage with BG with fibula

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26
Q

Shepherd hook deformity
Mc Cune Albright
Rind sign

A

Fibrous dysplasia

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27
Q

Mc cune albright

A

Fibrous dysplasia
Cafe au lait
Precocious puberty

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28
Q

Letterer Siwe disease
Hand schuller Christian
Eosinophilic granuloma

A

LCH

Spontaneous resolution

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29
Q

Birbeck granules TENNIS racket shape on EM

A

LCH

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30
Q

<3y fatal

A

Letterer siwe

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31
Q

Lytic skull lesion
Exophthalmos
Diabetes insipidus

A

Hand schuller Christian

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32
Q
Solitary bone/lung 
Lung - histiocytosis X 
Skull - bevelled lytic lesion mc 
CD1a 
S100+
A

Eosinophilic granuloma

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33
Q

Jail bar
Courdroy appearance
Polka dot sign

A

Hemangioma

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34
Q

Sacrum Lytic lesion
Notochord remnant
Physaliferous cells
2nd mc malig of spine after MM

A

Chordoma

Excision +/- radiation

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35
Q
Radio resistant 
Germ line RB mutation 
Night pain 
Mc lower end of femur 
Metaphysis 
Intramedullary tumor
A

OS

DOC- MTX

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36
Q

Doc for OS

A

MTX

No etoposide. Never

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37
Q
Marrow tumor 
2nd > 1st decade 
Femur diaphysis 
Pain, ?OM
Onion peel
A

Ewing’s

ChemoRx

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38
Q

Genes in Ewing’s

A
21,22
17,22
11,22 
Trisomy 8&12
MIC2 specific 
CD99 specific
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39
Q

Pelvis
I’ll defined margin
Hyperglycaemia +

A

CS

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40
Q

> 20% plasma cells

No CRAB

A

Plasma cell leukaemia

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41
Q

CRAB?

A

HyperCa
Renal failure
Anemia
Bone Lytic lesions

MM

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42
Q

Bursa tumor
Biphasic tumor ~ Squamous and mesenchymal cells +
t(X;18)
SYT SSX fusion gene

A

Synovial cell CA

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43
Q

Skull Lytic lesions

A

MELTHROME

MM
Eosinophilic granuloma 
LCH 
TB 
HyperPTH 
RadioRx
OM
Mets
Epidermoid
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44
Q

IA,B,C
II
III

A

1A - well defined , sclerotic : SBC, FD
1B - well defined , no sclerotic : ABC, GCT
1C - ill defined : CS

2 - Moth eaten - MM Mets
3 - Permeative : Ewing’s MM Mets

45
Q

Cotton wool skull

Osteoporosis circumscripta

A

Pagets

46
Q

Coffee bean nucleus

A

Langerhans cell of LCH

47
Q

Cupping splaying freying

A

Rickets

Epiphysis is BLACK

48
Q
Trummerfeld rarefaction
Pelikan spurs
Corner sign 
Wimberger ring 
Frankel line
A

Scurvy

Epiphysis is WHITE

49
Q

Winberger corner sign

A

Metaphyseal defect in congenital syphillis

50
Q

Enamel defect

Dentine defect

A

Enamel - rickets

Dentine - scurvy and OI

51
Q
Adult rickets 
TRIRADIATE PELVIS 
Otto pelvis - protrussio acetabuli 
Osteoid>Osteon 
Tetracycline label
A

Osteomalacia

52
Q

XD
PHEX gene mutation
Ca PTH D3 normal
ALP raised

A

Hypophosphataemic rickets

53
Q

White line frenkel

A

Scurvy
Healing rickets
MTX
Lead poisoning

54
Q

Pseudo# milkman# looser zones UMBAZANON
Arterial indentation on bones
NOF
Pubic Rami

A

Osteomalacia
Hyper PTH
NF

55
Q
Subperiosteal resorption
Osteitis fibrousa cystica 
Brown tumor 
ROTTING FENCE POST ap 
Salt and paper skull 
Loss of LAMINA DURA in teeth
A

HyperPTH

56
Q
FGFR3 # 
Enchondral ossification defect 
NORMAL IQ 
Limb dwarf 
Trident Starfish hand 
Champagne glass pelvis 
Bullet shaped vertebra
A

Achondroplasia

57
Q

Absent clavicle

Intramembranous ossification defect

A

Cleidocranial disorder

58
Q
Absent marrow 
OM of mandible 
Carbonic anhydrase Proton pump # 
Marble bone 
Functional def of osteoclasts 
Anemia infections HSM CN2,7,8
DELAYED bone healing
A

Osteopetrosis

Marrow transplant

59
Q

Marble bone

Rugger jersey spine

A

Osteopetrosis

60
Q
Osteitis deformans 
Osteoclasts large and irregular 
Elder males 
PELVIS mc PAIN mc 
Ca AND PO4 normal 
ALP raised
A

Pagets

Calcitonin for pain
Bisphosphinates

61
Q

Histo
Cement lines
Mosaic form
Marble ap

A

Pagets

62
Q

Ivory vert
Bullet head vert
Cotton wool skull

A

Pagets

63
Q

T score
Normal
Osteopenia
Osteoporosis

A

Normal >-1
Osteopenia -1 to -2.5
Osteoporosis

64
Q

Normal CA PO4 PTH ALP

A

Osteoporosis

Estrogen
Bisphosphinates
Calcitonin
Low dose PTH

65
Q

Max osteoporosis of which bone in hemiplegia

A

Humerus

66
Q
Lobstein vrolik 
Brittle bone disease 
Col type 1 # 
AD 
Osteopenia 
Hyperlax DDH 
Blue sclera, hearing # Dentinogenesis imperfecta 
Silence classification 
Bailey dubo rods for path #
A

OI

Gene Rx

67
Q

Ivory vertebra

A

LIMPHO

Lymphoma 
Infection TB 
Medullo Mets 
Pagets 
Hemangioblastoma 
OS, OB
68
Q

Candle dripping

A

Maleorrhexis

69
Q

Spotted bone disease

A

Osteopoikilosis

70
Q

Serrations

A

Osteopathia serratia

71
Q
Perkins line 
Shallow acetabulum 
Superolat displacement 
Small epiphysis 
Narath +
A

DDH

72
Q

IOC and Screening DDH

A

IOC MRI
Screening USG
Alpha angle decreases
Beta increase

73
Q

Allis and galleazi test for

A

DDH

Pavlik harness
Von Rosen
Bachelor cast

74
Q
AVN femoral epiphysis 
Painless 
Lat subluxation HOF
Sagging rope 
Crescent sign X-ray 
IOC MRI
A

Perthes

Self resolving
Maintain abduction

75
Q
11-20 boys 
Endocrines # 
AXIS DEVIATION Klein’s line - Trethowan sign 
MRI 
Flexion restricted
A

SCFE

Fixation

76
Q
XR 
Males 
Dystrophin gene 
<5y    (>5y Becker’s) 
Gower sign
A

DMD

77
Q

Ischemia of SCM
COCK ROBIN ap
Up to 3m

A

CMT

Self resolves

78
Q
Fusion of cervical vert 
Short web neck low post hairline 
Restricted neck 
Scoliosis 
Sprengel deformity
A

Klippel Fiel

79
Q
Genu recurvatum 
Knee hyperextn 
Defect in upper tibia 
60% B/L 
Progresses with age
A

Blounts

Lateral wedge osteotomy

80
Q

Vertical talus

A

Rocker bottom

81
Q

Obliterated medial arch
Heel in valgum
Jacks test - flexible or restrictive?

A

Peds planus

82
Q

CTEV correction

<1y

A

Ponsetti

Above knee cast in CAVE for 6-8wks

83
Q

CTEV correction

1-3y

A

PMSTR Turcos

84
Q

CTEV correction

3-5 y

A

Calcaneum cuboid resection

Evans

85
Q

CTEV correction

5-8y

A

Dwyers lat osteotomy

86
Q

CTEV correction

8-10y

A

Wedge tarsectomy

87
Q

CTEV correction

>10y

A

Triple arthrodesis

NTCC
NT toughest

88
Q

Atypical CTEV

A

SHORT CALF

Short great toe Sole crease 
Heel crease Hyperextended great toe 
Others AMC NF SPINA BIFIDA 
Rigid feet 
Tight heel
89
Q

PIRANI scoring

A

THE LMP

Talar head 
Heel 
Equinus 
Lat curvature of foot 
Medial crease 
Post crease
90
Q
Chip # meta+epi+periosteum
Metaphyseal bucket handle # 
Spiral # 
Knobbing # at ribs 
Sub epiphysis micro # on MRI 
Skull egg shell #
A

BBS

91
Q

Crawford classification

A

Cong Pseudoarthrosis of tibia

92
Q

Turner
Wrist styloid process prominent
BL
Functions excellent

A

Madelung

93
Q

Quardriceps #
Tibialis Ant #
Deltoid #

A

Polio

94
Q

Pure lytic bony secondaries

A

RCC

95
Q

Mc benign tumor

A

Osteochondroma

Multiple

96
Q

Mc true benign

A

Osteoid osteoma

Single

97
Q

Mc bony tumor non-hemat origin

A

1st OS
2nd CS
3rd Ewing’s sarcoma

98
Q

Mc hemat bony CA

A

MM

99
Q

Mc bone tumor

A

Mets

100
Q

Mc tumor in 1st decade

A

Ewing’s

101
Q

Owl winking sign

A

Spinal mets

102
Q

Pure lytic bony secondaries

A

RCC

103
Q

Mc benign tumor

A

Osteochondroma

Multiple

104
Q

Mc true benign

A

Osteoid osteoma

Single

105
Q

Mc bony tumor non-hemat origin

A

1st OS
2nd CS
3rd Ewing’s sarcoma

106
Q

Mc hemat bony CA

A

MM

107
Q

Mc bone tumor

A

Mets

108
Q

Mc tumor in 1st decade

A

Ewing’s

109
Q

Owl winking sign

A

Spinal mets