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Fig. 4 | BMC Surgery

Fig. 4

From: A case report of revision occipital-cervical fusion after atlanto-axial instrumentation failure for neurofibromatosis type I

Fig. 4

Second operation. a The anterior–posterior radiography image at the second operation. b Sagittal radiography image at the second operation. A long fixation from the occipital bone to C4 was performed. The upper atlantodental interval was 2.8 mm. c Anterior–posterior radiography image at 4 years after the second operation. d Sagittal radiography image at 4 years after the second operation

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