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Fracture Classifications

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efrey2009's version from 2016-03-27 21:40

Section 1

Question Answer
1st MTP dislocation classificationJahss
1st MTP location where the sesamoid apparatus is NOT disrupted and cannot be close reducedJhass Type 1
1st MTP dislocation where there is rupture of the intersesamoidal ligamentJhass Type 2A
1st MTP dislocation where there is a fracture of 1 of the sesamoidsJhass Type 2B
5th metatarsal base fracture classificationStewart
transverse fracture at the metaphysis-diaphysis junction, relatively avascularStewart Type 1
classification also known as a Jone's FractureStewert Type 1
intra-articular avulsion fracture of the 5th met baseStewart Type 2
extra-articular avulsion fracture of the 5th met baseStewart Type 3
intra-articular comminuted fracture of the 5th met baseStewart Type 4
avulsion fracture of the apophysis of the 5th met base in a chilldStewart Type 5
fracture classification for navicular fracturesWatson-Jones
avulsion fracture of the navicular tuberosityWatson-Jones Type 1
dorsal lip fracture of the navicular, don't conduse with os supranaviculareWatson-Jones Type 2
fracture of the body of the navicular, relatively avascularWatson-Jones Type 3
fracture known as the "nut cracker" fracture, does not fall into a classificationCuboid fracture
classification used for Lisfranc's dislocations, aka ____ Hardcastle, "Fleck Sign"
Lisfranc's dislocation where all mets are dislocated mediallyHardcastle A homomedial
Lisfranc's dislocation where all mets are dislocated laterallyHardcastle A homolateral
Lisfranc's dislocation where some but not all mets are dislocated in the same directionHardcastle B
Lisfranc's dislocation where mets are divergent with 1st met going medially and 2-5 going laterallyHardcastle C
critical angle of Gissane130 degrees is normal
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Section 2

Question Answer
critical angle of Gissane (crucial angle) normal value130 degrees
Boehler's angle normal value25-40 degrees
ecchymosis on the plantar, medial, and lateral aspect of the calcaneusMondur's sign
angle that measure the sagittal plane relationship between the talus and calcaneusBoehler's angle
will Boehler's angle increase or decrease with a fracturedecrease
angle that is related to the strut of the calcaneus that supports the lateral process of the taluscritical angle of Gissane (crucial angle)
will the critical angle of Gissane increase or decrease with a fracturedecrease
2 unique views used to see calcaneal fractures of the STJBroden and Isherwood
involves a lateral oblique projection to see the posterior facetBroden 1
involves a medial oblique projection to see the sinus tarsiBroden 2
axial lateral oblique projection to see the posterior facet of the STJIsherwood
axial medial oblique projection to see the posterior and middle facets of the STJIsherwood
lateral oblique view to see the anterior facet and anterior processIsherwood
classification systems used for calcaneal fractures (3)Rowe, Essex-Lopresti, and Sanders
chunking off of the medial or lateral plantar tuberosity of the calcaneusRowe 1A
shearing off of the sustentaculum tali from severe inversionRowe 1B
avularion fracture of the anterior process of the calcaneus from stressing the bifurcate ligament, don't confuse with os calcaneal secondumRowe 1C
avulsion fracture of the posterior superior aspect of the calcaneusRowe 2A
avulsion fracture of the entire insertion of the tendo achille's off the calcaneusRowe 2B
simple fracture of the calcaneus that does NOT involve the STRowe 3A
comminuted fracture of the calcaneus that does NOT involve the STJRowe 3B
calcaneal fracture WITH involvement of the STJRowe 4A/B
intraarticular calcaneal fracture without involvement of the C-C jointRowe 5A
intraarticular calcaneal fracture WITH involvement of the C-C jointRowe 5B
memorize

Section 3

Question Answer
calcaneal tuberosity fractureEssex-Lopresti Type 1A
fracture of the anterior process of the calcaneus, C-C joint is involvedEssex-Lopresti Type 1B
undisplaced calcaneal fracture, secondary fracture line posteriorly, piece does NOT pop out, STJ involvedEssex-Lopresti Type 2A
displaced calcaneal fracture, secondary fracture line dorsally, piece pops out, STJ involvedEssex-Lopresti Type 2B
grossly comminuted calcaneal fracture, STJ involvedEssex-Lopresti Type 2C
surgical classificationn system used, take 3mm slices for CTSanders
non-displaced articular posterior facet fractureSanders 1
2 part fracture at most lateral portion of posterior facetSanders 2A
2 part fracture at the middle portion of the posterior facetSanders 2B
2 part fracture at the most medial portion of posterior facetSander 2C
3 part fracture at the lateral and middle posterior facetSanders 3AB
3 part fracture at the lateral and medial posterior facetSanders 3AC
3 part fracture at the middle and medial posterior facetSanders 3BC
4 part fracture at the lateral, middle, and medial posterior facetSanders 4ABC
memorize

Section 4

Question Answer
classification regarding talar neck fracturesHawkin's
talar neck fracture with minimal displacement and one blood source disruptedHawkin's Type 1
talar neck fracture with displacement and STJ subluxation and 2 of 3 blood source interruptedHawkin's Type 2
talar neck fracture with displacement of the body out of the ankle joint, all 3 blood sources are disruptedHawkins Type 3
talar neck fracture with displacement of the T-N joint, all 3 blood sources disruptedHawkins Type 4
3 arteries that give blood supply to the talar neckDorsalis pedis, posterior tibial, and artery of the sinus tarsi/tarsal canal
has a 7-15% chance of getting AVNHawkin's Type 1
has a 45-50% chance of getting AVNHawkin's Type 2
has an 85% chance of getting AVNHawkin's Type 3
has a 95-100% chance of getting AVNHawkin's Type 4
appears 6-8 weeks post fracture of the talar neck, is a subchondral radiolucency in the talar body, what does this indicate and what is it calledblood supply to the talus is intact, Hawkin's sign
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