PMC5458700_01
Lateral subtalar dislocation related with fracture and bone incarceration.
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F1
Ankle X-ray showed a lateral subtalar dislocation with bony incarceration (Fig. 1).
Sagittal and frontal section of computed tomography scan, objectifying dislocation and sustentaculum tali incarceration.
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F2
Computed tomography (CT) confirmed the subtalar dislocation with talonavicular subluxation and found that the bone fragment originates from the sustentaculum tali (Fig. 2).
Post-operative X-rays objectifying the reduction of dislocation and the osteosynthesis of sustentaculum tali.
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F3
Finally, the sustentaculum tali was reduced and fixed with a compression screw (Fig. 3).
X-rays of the ankle objectifying subtalar arthrosis.
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F4
At 3 years, "American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-hindfoot" score was 86, and the functional result was considered excellent despite a Grade I subtalar osteoarthritis on the ankle X-ray (Fig. 4).