Pod Med and Surgery - Biomechanics, Radiology, and Yorath

remucusu's version from 2015-04-29 14:48


Question Answer
how does the wavelength and the frequency of x rays differ from visible lightshorter wavelength and higher frequency
what is primary vs secondary radiationprimary is what hits patient, secondary bounces off patient
what is the name of the thing that shoots the x raysthe tube
what age groups need decreased xray powerkids and geriatrics
more often weight bearing or non weight bearing for xraysweight bearing, unless you physically cant
what view would you use to see both sesamoids axial sesamoid
what would you use for a view of the posterior subtalar jointharris and beath (35-45)... cant see subtalar joint in axial calcaneal
what is the difference between the harris and beath view and the axial calcanealyou can see the subtalar joint space in the harris and beath
where do you get the angle for the harris and beath fromthe lateral WB
how would you rotate the foot for a mortise ankle viewinternally
what view is used to see the ankle mortisemortise ankle WB
how many projections are generally used per patient3... 2 at 90 and 1 oblique
5 steps to radiographic interpretationQuality. soft tissue, bone, joints, biomechanics
what is mockbergs calcinosiswhen the arteries have a little calcium in them
how to tell the difference between a foreign body and an artifactartifact will jump around in relation to structures
where is soft tissue thickest and weakest on xraythickest prox med, thinnest dist lat
what is the rule of thirdsUNDER 40 years old ... 1/3 cortex 1/3 medullary cavity 1/3 cortex
what is the rule of halvesOVER 40 years old .... 1/4 cortex, 1/2 medullary 1/4 cortex
what feature would you see in osteopolikosisbone islands
what radiographs would you use for biomechanical assessmentAP and Lateral at patients natural angle of gait


Question Answer
what would the result of avascular necrosi be on bone densityincreased
what would a tumor do to bone densityincrease it
what would osteopolikosis do to bone densityincreased spots of it
what would ostopenia do to bone densitydecrease
what would osteoporosis do to bone denstiydecrease

what is the tube angle

Question Answer
dorsal plantar weightbearing view15 degrees
dorsal plantar marked lesion0 degrees
lateral foot projection90 degrees
lateral hallux/digital weightbearing90 degrees
WB lateral oblique40 degrees
medial oblique WB25 degrees
axial sesamoid WB90 degrees
axial calcaneal WB25
WB ankle projection90
tube angle for all ankle views90 degrees
non weight bearing ankle viewssame number of degrees as the wedge used
dorsoplantar foot NWB15 deg




Question Answer


Question Answer
three motions in pronationdorsiflexion, eversion, abduction
how many motions must occur together at the subtalar joint3
what happens to the first ray in pronationNOTHING, it does not participate
what is the normal angle of declination (femoral torsion)8-12 degrees internally
what is the angle of gaitthe outward angle of the foot relative to the sagital plane at the midline
what is the base of gaitdistance between the medial malleoli
what is congruentnormal joint
what is subluxtionpartial dislocation
what is the normal angle of inclination of the femur to its neck120-128
what is genu rectavariumknee angle past 180 degrees
what 2 joints contribute to the cyma linetalonavicular, and calcaneocuboid
what condition is associated with a posterior displaced (at the calcaneocuboid joint) cyma linepronated
describe pez equinusfoot stuck in plantarflexion
what is a dorsiflexed first ray1st ray dorsiflexes more than plantarflexes.. fixed deformity
what is a plantarflexed first ray1st ray plantarflexes more than dorsiflexes.. fixed deformity
what happens to the midtarsal joint in a plantarflexed 1st rayfully pronated... this can be flexible or rigid
what is the locking mechanism of the midtarsal jointTP and P(F)L muscles cross on the bottom of the foot and both support the arch by pulling the bones together
what is the normal angles of the forefoot before it can be called forefoot adductus0-15 degrees
forefoot valgus descriptionEVERSION of the forefoot
describe compensated forefoot varuspronation of the subtalar joint to compensate for a forefoot varus
what is abnormal compensationmovement of a joint in a direction or plane it isnt supposed to move
what is forefoot supinatusfixed supinated position of forefoot (like forefoot varus) but caused by SOFT TISSUE
describe malleolar positiontorsional relationship of malleoli and tibial condyles
what is the axial and planar count for the subtalar jointuniaxial triplanar


Question Answer
what is OSHAoccupational safety and health administration
what is the priority for CPR nowcirculation airway breathing CAB
unwrapped INSTRUMENT PROCEDURE270' for 3 min, dry for 30
wrapped instruments INSTRUMENT PROCEDURE270' for 5 min, dried for 30 min
towels/drapes STERILIZATION270' for 30 min, and dry for 30 min