PMC5820901_01
When viewed from above, patient in the prone position, with the knife lodged in the neck region
AJNS-13-75-g001.jpg
PMC5820901_01_AJNS-13-75-g001.jpg
F1
A 7 cm long, single-edged blade, penetrated next to the sagittal midline at occipitocervical junction was remaining inside the wound [Figures 1 and 2].
When viewed from the side, patient in the prone position, with the knife lodged in the neck region
AJNS-13-75-g002.jpg
PMC5820901_01_AJNS-13-75-g002.jpg
F2
A 7 cm long, single-edged blade, penetrated next to the sagittal midline at occipitocervical junction was remaining inside the wound [Figures 1 and 2].
The computed tomography showed that the blade had penetrated between the occipital bone and the posterior arcus of atlas, that the edged side was laterally located endangering the vertebral artery and that the tip of the blade had reached intracranial region through the foramen magnum
AJNS-13-75-g003.jpg
PMC5820901_01_AJNS-13-75-g003.jpg
F3
The computed tomography revealed that the blade had penetrated between the occipital bone and the posterior arcus of atlas that the edged side was laterally located endangering the vertebral artery and that the tip of the blade had reached intracranial region through the foramen magnum [Figures 3 and 4].
Preoperative computed tomography showed the knife has entered the region between the occipital bone and the C1 lamina, and the tip of the blade has extended up foramen magnum
AJNS-13-75-g004.jpg
PMC5820901_01_AJNS-13-75-g004.jpg
F4
The computed tomography revealed that the blade had penetrated between the occipital bone and the posterior arcus of atlas that the edged side was laterally located endangering the vertebral artery and that the tip of the blade had reached intracranial region through the foramen magnum [Figures 3 and 4].