Ortho Flashcards

one liners (44 cards)

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?

22
Q

hemi arthoplasty instrument which has two holes?

23
Q

most common site for tb hip?

24
Q

most common site of tb femur?

A

babcocks triangle

25
epiphyseal tumors with calcification?
Chondroblastoma
26
most common tumor of bone in 2nd decade?
OS
27
MC tumor of bone in 1st decade?
Ewings sarcoma
28
most radiosensitive bone tumor?
Ewings
29
Treatment of Ewings?
neoadjuvant CT> Sx> Adj CT
30
Single central cavity seen in?
UBC (UNICAMERAL BONE CYST)- fallen leaf sign
31
night pain relieved on salicylates (aspirin) in which tumor?
O. osteoma
32
multiple cavity in which bone tumor?
ABC (Aneurysmal Bone Cyst)
33
large to feel, small on xrays . which tumor?
osteochondroma
34
commonest site of GCT?
lower end of femur
35
Shepherd Crook deformity seen in?
Fibrous Dysplasia also rind sign is seen here
36
Physaliferous cells (vacoulated cytoplasm) are seen in?
Chordoma
37
t10 protocol is used for?
osteosarcoma
38
which translocation in ewings sarcoma?
t(11,22) is the most common
39
which bone tumor is associated with high % of plasma cells in peripheral smear?
MM (multiple myeloma)
40
cotton wool skull is seen in?
Paget's Ds.
41
nerve injury recovery rate in humans?
1mm/day
42
oschner clasp sign is for which nerve?
median nerve
43
hill sachs and bankart lesions seen in?
Shoulder dislocation
44