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1
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2
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- HPI: 18 y.o. AAM with CC of b/l painful feet and postural complaints
- PMH: Unremarkable
- PSH : Unremarkable
- Meds: denies
- Allergies: Denies
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3
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- Previous conservative therapy included orthotics, NSAIDS, and physical
therapy without relief
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4
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- PE: Loss of longitudinal arch height, severe valgus with RCSP, pain to
palpation of PTT and sinus Tarsi, no focal weakness with MMT, STJ
limited to neutral, AJ dorsiflexion to neutral with leg straight and 5
degrees with knee bent
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5
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- Double limb heel rise test shows lack of inversion at the STJ
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6
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- No Midtarsal joint break with limb rise
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7
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- Attempted placement of STJ neutral reveals a first ray elevatus that is
reduciable (forefoot supinatus)
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8
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9
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10
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- Contralateral foot presenting with a C-N osseous coalition
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11
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12
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- Fibrous or cartilaginous coalition,the bones are in close proximity,
both have irregular surfaces, and the anteromedial calcaneus is
abnormally widened or flattened.
- On lateral radiographs, elongation of the anterior dorsal calcaneus may
simulate an anteater’s nose
- Hypoplasia of the talus may also be observed with calcaneonavicular
coalition
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13
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- Tech-99 bone scan shows increased uptake at the level of STJ consistent
with arthritic changes
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14
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- CT scan demonstrating Osseous coalition
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15
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16
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- Adult type IB C-N coalition
- Treatment plan
- Gastroc recession
- Isolated Subtalar joint fusion
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17
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18
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19
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20
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21
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22
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23
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24
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25
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