The RIVET

A novel technique involving absorbable fixation for hydroxyapatite osteosynthesis

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Cranioplasty using custom-made hydroxyapatite (HAP) ceramic implants is a common procedure for the repair of skull defects. The advantages of using HAP are that it is nonmetallic, unlike titanium; biocompatible; and osteoconductive. Furthermore, it can be molded to any complex shape that may be needed. A disadvantage is that titanium screws and plates are in development for its fixation. We developed a technique for implant fixation using bioabsorbable screws and plates, and named this technique RIVET: resorbable immobilization for vacuolar en bloc technique.Before each operation, the implant was customized for the patient in question on the basis of models prepared using computed tomography data. The bioabsorbable plates were attached to the implant by drilling, tapping, and screwing, as shown in the video (http://links.lww.com/ SCS/A43). The interior portion of the screw was then melted to flatten it against the internal surface of the implant, forming a rivet to join the plate and HAP implant.We used this technique for cranial reconstruction in 2 patients, with satisfying and functional results. We did not encounter any complications.In conclusion, the technique described here allows surgeons to fix implants and plates together more rigidly, giving a better result than possible with previous methods.

Original languageEnglish
Pages (from-to)946-948
Number of pages3
JournalJournal of Craniofacial Surgery
Volume24
Issue number3
DOIs
Publication statusPublished - 2013 May

Fingerprint

Durapatite
Titanium
Ceramics
Skull
Immobilization
Tomography

Keywords

  • Bioabsorbable plate
  • Hydroxyapatite
  • Poly-L-lactic- polyglycolic
  • Rigid fixation
  • Skull reconstruction

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Surgery

Cite this

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title = "The RIVET: A novel technique involving absorbable fixation for hydroxyapatite osteosynthesis",
abstract = "Cranioplasty using custom-made hydroxyapatite (HAP) ceramic implants is a common procedure for the repair of skull defects. The advantages of using HAP are that it is nonmetallic, unlike titanium; biocompatible; and osteoconductive. Furthermore, it can be molded to any complex shape that may be needed. A disadvantage is that titanium screws and plates are in development for its fixation. We developed a technique for implant fixation using bioabsorbable screws and plates, and named this technique RIVET: resorbable immobilization for vacuolar en bloc technique.Before each operation, the implant was customized for the patient in question on the basis of models prepared using computed tomography data. The bioabsorbable plates were attached to the implant by drilling, tapping, and screwing, as shown in the video (http://links.lww.com/ SCS/A43). The interior portion of the screw was then melted to flatten it against the internal surface of the implant, forming a rivet to join the plate and HAP implant.We used this technique for cranial reconstruction in 2 patients, with satisfying and functional results. We did not encounter any complications.In conclusion, the technique described here allows surgeons to fix implants and plates together more rigidly, giving a better result than possible with previous methods.",
keywords = "Bioabsorbable plate, Hydroxyapatite, Poly-L-lactic- polyglycolic, Rigid fixation, Skull reconstruction",
author = "Hirokazu Shido and Yoshiaki Sakamoto and Tomoru Miwa and Takayuki Oohira and Kazunari Yoshida and Kazuo Kishi",
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AU - Sakamoto, Yoshiaki

AU - Miwa, Tomoru

AU - Oohira, Takayuki

AU - Yoshida, Kazunari

AU - Kishi, Kazuo

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