DEX IOT Exam Prep : Orthopedic Surgery Q&A

DEX IOT Exam Review (New 2026-2027
n n n n n n




Update) Questions and Verified Answers
n n n n nn




n


QUESTION n


Whichnarthrexnbonenvoidnsolutionnprovidesncell,nsignalnandnscaffold?n
n
n




n

Answer:n
Arthrocellnbonenallograftn
n


n


QUESTION n


ArthrocellnallograftncontainsnancellularncomponentnreferredntonasnMIAMIncells.nWhatndoesnt
henacronymnMIAMInstandnfor?n
n

Answer:n
MarrownIsolatednAdultnmulti-lineageninduciblencellsn
n
n
n


QUESTION n


Whichnofnournbonenvoidnfillersnarencomposednofn100%nDBM?n
n




n

Answer:n
AllosyncnCorticalnFibersn
AllosyncnExpandncortica
lnfibersnAllosyncnPuren
AllosyncnCancellousnspongesn(strips,ncubes,n12x3nbutton)n
n
n
n


QUESTION n


Whatnarenthenthreenzonesnofnthenscaphoid?n
n




n

Answer:n
Distalnpole,nwaist,nproximalnpolen
n


QUESTION n


Surgicalntreatmentnisnindicatednfornwhichnofnthenfollowingnfindingsninnscaphoidnfractures?n
n

,A. Displacementngreaternthann1mmn
B. Angulationngreaternthann15ndegreesn
C. Comminutednfracturesn
D. Allnthenaboven
n
n

Answer:n
D.nAllnthenaboven
n


n


QUESTION n


Whichnfibersnofnthenscapholunateninterosseousnligamentnarenthenstrongestnandnmostnimpo
rtantntonwristnfunction?n
n

Answer:n
Dorsaln
n
n
n


QUESTION n


Ancottonnosteotomynisnannosteotomynofnwhichnbonenofnthenfoot?n
n




n

Answer:n
MedialnCuneiformn
n
n
n


QUESTION n


Whatnisnthenordernofnscrewnplacementninnthenanteriornanklenfusionnplate?n
n




n

Answer:n
1. Talusnlocking/non-lockingnscrewnfixationn
2. Tibianoblongncompressionnholennon-lockingnscrewnfixationn
3. Anatomicncompressionnholenscrewnfixation,n
4. Finalnfixationnwithntibianlocking/nonnlockingnscrewsn
n


QUESTION n


Atnwhatnstagenofnflatfootndeformitynisnannanklenfusionnoftennindicated?n
n




n

Answer:n
Stagen4n
n
n
n

,QUESTION n


Allnofnthenfollowingnarencomponentsnofnflatfootndeformity,nEXCEPT:n
n




A. Lossnofnlongitudinalnarchn
B. lateralntranslationnofnthennavicularnonnthentalusn
C. Valgusntiltnofnthencalcaneousn
D. Elevationnofnthentalarnheadn
E. Shorteningnofnthenlateralncolumnn
n
n

Answer:n
D.nElevationnofnthentalarnheadn(correctnanswer)n
n
n
n


QUESTION n


Annintersectionnofnthesentwontendonsnformn"ThenKnotnofnHenry"n
n




n

Answer:n
FHLnandnFDLn
n
n
n


QUESTION n


Anpatientnisnunablenornhasntoonmuchndifficultynperformingnansingle-
supportnheelnraise;nhisnhindfootnremainsnflexible.nThesenfindingsnonnphysicalnexamncorre
spondntonthisnStagenofnFlatfootndeformit:n
n
n

Answer:n
2n
QUESTION n




InnanspringnligamentnInternalBracenaugmentation,nwhatnsizenSwiveLocknanchornisnbestnforn
thensustentaculumnTali?n
n
n

Answer:n
3.5nmmn
n
n
n


QUESTION n


Whatnisnthenmostncommonntypenofnarthritisntonaffectnthenanklenjoint?n
n




n

Answer:n
Osteoarthritis
nn

, n


QUESTION n


Anklenarthritisnrelatesntonwhatnstagenofnflatfootndeformity?n
n




n

Answer:n
4n
n
n
n


QUESTION n


T/FnAnnadvantagenofnthenknotlessnanklentightropenimplantnisnearliernweightnbearingncompa
redntonscrewnfixationn
n

Answer:n
Truen
n
n
n


QUESTION n


T/FnPlateletsn(thrombocytes)narenancomponentnofnwholenbloodnthatndonnotncontainnannucle
us.nTherefore,nplateletsnarennotntrulyncellsn
Answer:n
Truen
n
n
n


QUESTION n


Whichnplanendividesnthenbodynintonrightnandnleftnhalves?n
n




n

Answer:n
Saggitalnplanen
n
n
n


QUESTION n


Whatnisnthenmostncommonnmotionnresponsiblenfornlateralnanklensprains?n
n




n

Answer:n
Inversion,nplantar-flexionn
n
n
n


QUESTION n


WhichnofnthenfollowingnisnNOTnonenofnthenthreenligamentsnthatnsupportsnthenanklensyndes
mosisnjoint?n
n

A. AnteriornTalofibularnligamentn(ATFL)n