case_images: PMC10629297_01
case_images: Image findings at first visit. (a and b) Computed tomography showed early sagittal suture synostosis. (c and d) Magnetic resonance imaging revealed ventricular enlargement and ballooning of the base of the third ventricle.
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case_images: F1
case_images: The computed tomography (CT) scan showed early sagittal suture synostosis and ventricular enlargement [Figure 1].
case_images: (a and b) Computed tomography (CT) post ventriculoperitoneal shunt. He developed slit ventricle syndrome (SVS). (c and d) CT after reservoir placement through the left anterior horn. The right ventricle enlarged and SVS improved after daily reservoir puncture.
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case_images: PMC10629297_01_SNI-14-368-g002.jpg
case_images: F2
case_images: Meanwhile, he developed pansynostosis on a CT scan [Figures 2a and b]. At the age of 4 years, we performed CSF reservoir placement on the contralateral side of the shunt [Figures 2c and d].
case_images: (a-c) Preoperative and (d-f) postoperative computed tomography. The osteotomy line was designed so as not to interfere with existing shunts and reservoirs. Furthermore, the emissary vein was preserved as much as possible. The osteotomy line was kept rostral to the transverse sinus because the adhesion between the bone and the dura mater was particularly strong near the sinus confluence.
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case_images: PMC10629297_01_SNI-14-368-g003.jpg
case_images: F3
case_images: The sites of the distractors were decided so as not to interfere with the existing shunt and reservoir [Figure 3].
case_images: (a) Computed tomography at the end of cranial expansion. Slit ventricle syndrome resolved. (b-d) We extended the distractor to a total of 25 mm. The extension of the lateral distractor on the right side was terminated at 9 mm not to interfere with the shunt.
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case_images: PMC10629297_01_SNI-14-368-g004.jpg
case_images: F4
case_images: The extension of the lateral distractor on the right side was terminated at 9 mm not to interfere with the shunt [Figure 4].
case_images: (a) Computed tomography after the removal of the extension device. The ventricle was not slit. (b-d) Bone formation in the bone defect was good 6 months after the distraction osteogenesis.
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case_images: PMC10629297_01_SNI-14-368-g005.jpg
case_images: F5
case_images: Bone regeneration in the defect site was good, and the extension device was removed 6 months after the operation [Figure 5].