Ortho Flashcards

one liners

1
Q

low dose or high dose PTH for normal osteoblast function?

A

low dose. because high dose activates osteoclast more

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2
Q

type of collagen in bone and cartilage respectively?

A

type 1 and type 2 respectively

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3
Q

ossification years of carpal bones?

A

5 4 3 12- She Looks too pretty
5 5 1 1- try to catch her

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4
Q

diseases of epiphysis area?

A

ECG- Mneumonic

C- Chondroblastoma
G- GCT(GIANT CELL TUMOR)

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5
Q

diseases of metaphysis area?

A

Osteosarcoma (OS)

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6
Q

Ds. of Diaphysis area?

A

Adamuntinoma
Osteoid osteoma
Ewings sarcoma

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7
Q

what is Shenton’s arch?

A

try to answer by yourself

breach of femoral and pelvic area imaginary arch

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8
Q

function of ACL and PCL?

A

PCL- restricts Ext. rotation
ACL- restricts Internal rotation

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9
Q

to check osteoblastic activity?

A

Bone scan

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10
Q

sunray appearance of bone?

A

can be any malignant ds but typical feature of OS

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11
Q

codman’s triangle appearance?

A

OS

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12
Q

onion peel appearance?

A

Ewings sarcoma (hazzy app.)

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13
Q

soap bubble appearance?

A

GCT (osteoclastoma)

target joints

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14
Q

most common infection in ortho?

A

STAPH.

usually affects metaphyseal plate

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15
Q

most common site of osteomyelitis in ortho?

A

lower end of femur

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16
Q

osteomyelitis: how to check if Tt is operative or not?

A

By Xray if changes comes on xray then its surgery only. if no changes on xray, then antibiotics only

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17
Q

what is FABER and FADIR?

A

FABER- max. capacity- FLEXION, ABDUCTION AND ER

FADIR- less things in joints- FLEXION, ADDUCTION, IR

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18
Q

PYQ- FADIR?

A

DEFORMITY- POST. DISLOCATION

19
Q

WHAT IS TOM SMITH ARTHRITIS?

A

destroyed femoral epiphysis

20
Q

sequestrum is pathognomic of which ds?

A

OM

sign- paprika sign

21
Q

dot in circle sign on MRI?

A

Mycetoma

22
Q

hemi arthoplasty instrument which has two holes?

A

Austin Moore

23
Q

most common site for tb hip?

A

acetabulum

24
Q

most common site of tb femur?

A

babcocks triangle

25
Q

epiphyseal tumors with calcification?

A

Chondroblastoma

26
Q

most common tumor of bone in 2nd decade?

A

OS

27
Q

MC tumor of bone in 1st decade?

A

Ewings sarcoma

28
Q

most radiosensitive bone tumor?

A

Ewings

29
Q

Treatment of Ewings?

A

neoadjuvant CT> Sx> Adj CT

30
Q

Single central cavity seen in?

A

UBC (UNICAMERAL BONE CYST)- fallen leaf sign

31
Q

night pain relieved on salicylates (aspirin) in which tumor?

A

O. osteoma

32
Q

multiple cavity in which bone tumor?

A

ABC (Aneurysmal Bone Cyst)

33
Q

large to feel, small on xrays . which tumor?

A

osteochondroma

34
Q

commonest site of GCT?

A

lower end of femur

35
Q

Shepherd Crook deformity seen in?

A

Fibrous Dysplasia

also rind sign is seen here

36
Q

Physaliferous cells (vacoulated cytoplasm) are seen in?

A

Chordoma

37
Q

t10 protocol is used for?

A

osteosarcoma

38
Q

which translocation in ewings sarcoma?

A

t(11,22) is the most common

39
Q

which bone tumor is associated with high % of plasma cells in peripheral smear?

A

MM (multiple myeloma)

40
Q

cotton wool skull is seen in?

A

Paget’s Ds.

41
Q

nerve injury recovery rate in humans?

A

1mm/day

42
Q

oschner clasp sign is for which nerve?

A

median nerve

43
Q

hill sachs and bankart lesions seen in?

A

Shoulder dislocation

44
Q
A