Orthobullets Notes Flashcards
Syme amputation energy expenditure
15%
Traumatic transtibial amputation energy expenditure
25%
Vascular transtibial ampuation energy expenditure
40%
traumatic transfemoral energy expenditure
68%
vascular transfemoral ampuation energy expenditure
100%
Horizontal parrallel metaphyseal lines can result from…
chronic bisphosphonate use.
Kaplan approach to the elbow
Interval between EDC and ECRB. More anterior and provides more protection against injury to the LUCL.
Kocher approach to the elbow
Interval between anconeus and ECU
The correct interval for fixation of a posteromedial tibial plateau fragment is…
between the pes anserineus and the medial head of the gastroc.
Cell that produces synovial fluid
Type B synovial cell
Fibrochondrocytes are responsible for…
meniscal healing.
t(12;16)
mxyoid liposarcoma
t(2;13)
alveolar rhabdomyosarcoma
t(12;22)
clear cell sarcoma
One of the main disadvantages of stainless steel is that…
it is susceptible to corrosion, specifically crevice and pitting.
Rates of recurrence for patients with chondrosarcoma are most directly related to…
increased telomerase activity.
Relative risk
risk of developing disease for people with know exposure compared to risk of developing disease without exposure
calculated by dividing the incidence of the study group by the incidence of the control group
Phenytoin
anticonvulsant that has been found to increase risk of osteoporosis and thus fracture
With a congenital limb deficiency, if unilateral…there will be
a gradually progressive limb-length discrepancy however the proportional lengths of the LEs will remain at a relatively constant ratio.
Factor V Leiden
Disease caused by abnormality of factor V that leads to decreased inactivation of factor Va by activated Protein C and increased blood clotting.
Best lab test for Vitamin D deficiency
25-hydroxycholecalciferol
active form of Vitamin D
1,25-dihydroxycholecalciferol
25-hydroxycholecalciferol is converted in the kidney to…
1,25-dihydroxycholecalciferol
inactive form of Vitamin D
24,25-dihydroxycholecalciferol
Premature arrest of the physis following growth plate disruption is attributed to…
vascular invasion across the physis.
Wolff’s Law
boen deposition and resorption occurs in response to the stresses placed upon it
The Heuter-Volkmann principle describes…
slowing of longitudinal physeal growth in response to increasing compressive force
Treatment of rhabdomyosarcoma
Chemo, radiation and wide resection
CPRS Type I occurs…
without an identifiable peripheral nerve component whereas CRPS Type II includes the same findings with identifiable nerve involvement.
The flap of the lateral extensile approach to the calcaneus is supplied by…
the lateral calcaneal branch of the peroneal artery.
Normal adult thigh-foot angle is…
10-15 degrees.
Calcitonin…
reduces serum calcium concentration by directly interfering with osteoclast maturation via receptors.
Which gene correlates with the severity of disease in spinal muscular atrophy?
survival motor neuron II (SMN2)
