Reverse Distraction for Treatment of Hydrocephalic Macrocephaly in Late Childhood

Hannah Miller1,2, Paul Grabb1,2, Michael Lypka1,2

  • 1Division of Pediatric Plastic and Craniofacial Surgery and Division of Neurosurgery, Children's Mercy Hospital, Kansas City, MO.

Insights

Reverse distraction osteogenesis offers a safer method for cranial reduction in children with severe macrocephaly. This technique improved a young patient's head control and social interaction, showing promise for older children.

Area of Science:

  • Pediatric Neurosurgery
  • Craniofacial Surgery
  • Medical Technology

Background:

  • Macrocephaly significantly impacts children's quality of life, affecting mobility and social interaction.
  • Traditional cranial reduction methods carry high risks, including bleeding and shunt complications.
  • Severe macrocephaly, often linked to conditions like holoprosencephaly and hydrocephalus, requires effective treatment.

Purpose of the Study:

  • To evaluate the efficacy and safety of reverse distraction osteogenesis for cranial reduction in a pediatric patient with severe macrocephaly.
  • To present the case of the oldest patient with macrocephaly treated using this technique.

Main Methods:

  • A 9-year-old girl with holoprosencephaly and severe macrocephaly underwent cranial reduction using reverse distraction osteogenesis.
  • The procedure involved circumferential craniotomy, placement of cranial distractors, followed by distractor removal and cranioplasty with resorbable fixation.

Main Results:

  • The patient experienced significant postoperative improvements in head control and engagement in school activities.
  • This represents the oldest reported case of macrocephaly treated with reverse distraction osteogenesis.

Conclusions:

  • Reverse distraction osteogenesis provides a safe and effective method for cranial reduction in children with profound macrocephaly.
  • The technique's gradual cranial vault contraction and limited initial bony surgery enhance safety, making it suitable for older children.

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