• Marlon S Mathews, William G Loudon, Michael G Muhonen, and Michael J Sundine.
• Department of Neurosurgery, University of California, Irvine, USA. mmathews@uci.edu
• J. Neurosurg. 2007 Oct 1; 107 (4 Suppl): 332331332-7; discussion 330-1.

AbstractDue to early diagnosis and treatment of hydrocephalus, neurosurgeons rarely are called upon to treat patients with extreme hydrocephalic macrocephaly. Macrocephaly can limit mobility and hygiene. The critical evaluation and surgical correction of the morphological problem of macrocephaly secondary to hydrocephalus is complex. Various techniques such as quadrantal, picket fence, crossbar, and modified rr techniques have been used to reduce the size of the cranial vault to decrease cranial volume while achieving good cosmesis. Limitations of vault reduction cranioplasty include the inability to alter the anteroposterior and lateral diameters of the skull base, the inability to shorten the superior sagittal sinus, and the need to avoid infolding of the brain due to the risk of venous infarcts. Reduction cranioplasty is indicated in the occasional patient whose large head size represents a mechanical or cosmetic problem of sufficient magnitude to seriously interfere with motor development and functioning, with resultant development of pressure sores and difficulties with nursing care. Reduction cranioplasty should be avoided in patients under the age of 3 years.

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