PMC5467319_01
Preoperative radiographs showing sclerotic change of the talar body in anteroposterior (a) and lateral (b) views.
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Radiography revealed peripheral sclerosis in the talar body (Figures 1(a) and 1(b)) and computed tomography (CT) revealed collapse and sclerotic changes in the talar body (Figures 2(a) and 2(b)).
Preoperative CT scans showing sclerotic change and collapse of the talar body in coronal (a) and sagittal (b) views.
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Radiography revealed peripheral sclerosis in the talar body (Figures 1(a) and 1(b)) and computed tomography (CT) revealed collapse and sclerotic changes in the talar body (Figures 2(a) and 2(b)).
Preoperative MRI scans showing heterogeneous low signal intensity in the talar body on a T1-weighted image (a), low signal intensity in the talar neck and weight-bearing area of the talar body on a T2-weighed image (b), and heterogeneous high signal intensity in the talar body on a STIR image (c).
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T1-weighted images showed heterogeneous low signal intensity in the talar body (Figure 3(a)). On T2-weighted images, signal intensity in the talar neck and weight-bearing area of the talar body was low (Figure 3(b)). Short time inversion recovery (STIR) images showed heterogeneous high signal intensity in the talar body (Figure 3(c)).
Postoperative radiographs showing the outcome of replacement of the talus with an alumina ceramic total talar prosthesis in anteroposterior (a) and lateral (b) views at 1 year and 6 months after surgery. There is good congruence between the talar prosthesis and the tibia, fibula, calcaneus, and navicular bone.
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At the most recent follow-up at 1 year and 6 months after surgery, radiographs showed that the prosthesis was appropriately positioned in the ankle with no degenerative or destructive changes in the surrounding bones (Figures 4(a) and 4(b)).
Postoperative CT scans showing good alignment of the prosthesis and surrounding bones in coronal (a) and sagittal (b) views at 1 year and 6 months after surgery. There is no osteolytic change in the surrounding bones or sinking of the prosthesis.
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There was no evidence of migration of the prosthesis on postoperative CT images (Figures 5(a) and 5(b)).
PMC5467319_02
Preoperative radiographs showing sclerotic change and collapse of the talar body in anteroposterior (a) and lateral (b) views.
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Radiography (Figures 6(a) and 6(b)) as well as CT (Figures 7(a) and 7(b)) of the right ankle showed collapse and sclerosis of the talus.
Preoperative CT showing sclerotic change and collapse of the talar body in coronal (a) and sagittal (b) views.
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fig7
Radiography (Figures 6(a) and 6(b)) as well as CT (Figures 7(a) and 7(b)) of the right ankle showed collapse and sclerosis of the talus.
Preoperative MRI showing heterogeneous low signal intensity in the talar body on a T1-weighted image (a), a mixture of low and high signal intensity in the talar body on a T2-weighted image (b), and partial high signal intensity in the talar body on a STIR image (c).
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fig8
T1-weighted images showed heterogeneous low signal intensity in the talar body (Figure 8(a)) and T2-weighted images showed a mixture of low and high signal intensity in the talar body (Figure 8(b)). STIR images showed partially high signal intensity in the talar body (Figure 8(c)).
Postoperative radiographs showing replacement of the talus with an alumina ceramic total talar prosthesis in anteroposterior (a) and lateral (b) views at 1 year and 6 months after surgery. There is excellent congruence between the talar prosthesis and the tibia, fibula, calcaneus, and navicular bone.
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fig9
At the most recent follow-up examination at 1 year and 6 months after surgery, radiographs showed that the prosthesis was in an appropriate position in the ankle with no degenerative or destructive changes in the surrounding bone tissue (Figures 9(a) and 9(b)).
Postoperative CT scans showing that the prosthesis and surrounding bones are well aligned in coronal (a) and sagittal (b) views at 1 year and 6 months after surgery. There is no osteolytic change in the surrounding bone or sinking of the prosthesis.
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fig10
There was no sign of migration of the prosthesis on postoperative CT (Figures 10(a) and 10(b)).