Use of the "mortise and tenon" principle in the augmentation of autologous cranioplasty using bone cement in a child

Chien Hsun Li, Shih Hung Yang, Huei Shyong Wang, Yong Kwang Tu, Meng Fai Kuo

Research output: Contribution to journalArticle

2 Citations (Scopus)


We report the case of a 20-month-old boy with autologous bone graft resorption that resulted in a floating bone graft and progressive asymmetric deformity of the skull. The patient had undergone decompressive craniectomy for acute subdural hematoma at the age of 13 months after a fall, followed by cranioplasty 1 month later with an autologous bone graft, which was stored in a freezer immediately after surgery. We used the mortise and tenon principle to replace the screws and plates to join a polymethylmethacrylate prosthesis to the skull, augmenting the resorbed autologous bone graft. The cosmetic effect was maintained and craniocerebral protection was restored. It is thought that this technique could be used for bone defects of various sizes in patients of any age in cases where screws and plates are not suitable.

Original languageEnglish
Pages (from-to)1807-1811
Number of pages5
JournalChild's Nervous System
Issue number12
Publication statusPublished - Dec 1 2010
Externally publishedYes



  • Cranioplasty
  • Decompressive craniectomy
  • Mortise and tenon
  • PMMA

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Clinical Neurology

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