Ortho Flashcards
one liners
low dose or high dose PTH for normal osteoblast function?
low dose. because high dose activates osteoclast more
type of collagen in bone and cartilage respectively?
type 1 and type 2 respectively
ossification years of carpal bones?
5 4 3 12- She Looks too pretty
5 5 1 1- try to catch her
diseases of epiphysis area?
ECG- Mneumonic
C- Chondroblastoma
G- GCT(GIANT CELL TUMOR)
diseases of metaphysis area?
Osteosarcoma (OS)
Ds. of Diaphysis area?
Adamuntinoma
Osteoid osteoma
Ewings sarcoma
what is Shenton’s arch?
try to answer by yourself
breach of femoral and pelvic area imaginary arch
function of ACL and PCL?
PCL- restricts Ext. rotation
ACL- restricts Internal rotation
to check osteoblastic activity?
Bone scan
sunray appearance of bone?
can be any malignant ds but typical feature of OS
codman’s triangle appearance?
OS
onion peel appearance?
Ewings sarcoma (hazzy app.)
soap bubble appearance?
GCT (osteoclastoma)
target joints
most common infection in ortho?
STAPH.
usually affects metaphyseal plate
most common site of osteomyelitis in ortho?
lower end of femur
osteomyelitis: how to check if Tt is operative or not?
By Xray if changes comes on xray then its surgery only. if no changes on xray, then antibiotics only
what is FABER and FADIR?
FABER- max. capacity- FLEXION, ABDUCTION AND ER
FADIR- less things in joints- FLEXION, ADDUCTION, IR
PYQ- FADIR?
DEFORMITY- POST. DISLOCATION
WHAT IS TOM SMITH ARTHRITIS?
destroyed femoral epiphysis
sequestrum is pathognomic of which ds?
OM
sign- paprika sign
dot in circle sign on MRI?
Mycetoma
hemi arthoplasty instrument which has two holes?
Austin Moore
most common site for tb hip?
acetabulum
most common site of tb femur?
babcocks triangle
epiphyseal tumors with calcification?
Chondroblastoma
most common tumor of bone in 2nd decade?
OS
MC tumor of bone in 1st decade?
Ewings sarcoma
most radiosensitive bone tumor?
Ewings
Treatment of Ewings?
neoadjuvant CT> Sx> Adj CT
Single central cavity seen in?
UBC (UNICAMERAL BONE CYST)- fallen leaf sign
night pain relieved on salicylates (aspirin) in which tumor?
O. osteoma
multiple cavity in which bone tumor?
ABC (Aneurysmal Bone Cyst)
large to feel, small on xrays . which tumor?
osteochondroma
commonest site of GCT?
lower end of femur
Shepherd Crook deformity seen in?
Fibrous Dysplasia
also rind sign is seen here
Physaliferous cells (vacoulated cytoplasm) are seen in?
Chordoma
t10 protocol is used for?
osteosarcoma
which translocation in ewings sarcoma?
t(11,22) is the most common
which bone tumor is associated with high % of plasma cells in peripheral smear?
MM (multiple myeloma)
cotton wool skull is seen in?
Paget’s Ds.
nerve injury recovery rate in humans?
1mm/day
oschner clasp sign is for which nerve?
median nerve
hill sachs and bankart lesions seen in?
Shoulder dislocation