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Related Experiment Videos

Experimental vertebroplasty using osteoconductive granular material.

G Cunin1, H Boissonnet, H Petite

  • 1Centre de traitement de la douleur, hôpital Lariboisière, the Service de neuro-chirurgie, Fondation Rothschild, and the Laboratoire de Recherches Orthopédiques Université Diderot ParisVII, Paris, France.

Spine
|May 2, 2000
PubMed
Summary
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Natural coral granules show osteoconductivity for vertebral body filling, promoting new bone formation. Fibrin sealant did not enhance this effect and increased coral resorption in animal models.

Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Regenerative Medicine

Background:

  • Osteoporotic vertebral bodies are at risk of fracture and often treated with polymethylmethacrylate (PMMA).
  • Alternative osteoconductive materials in granular form are being explored for vertebral augmentation.

Purpose of the Study:

  • To evaluate natural coral exoskeleton as an osteoconductive material for filling vertebral bodies.
  • To assess coral resorption and new bone formation after granular coral injection.

Main Methods:

  • Human cadaveric thoracic vertebral bodies were used to assess percutaneous injection feasibility.
  • Sheep vertebral bodies had cavities created and filled with coral alone or coral plus fibrin sealant, with controls.

Main Results:

Related Experiment Videos

  • Coral granules distributed homogeneously in human cadavers.
  • Coral significantly increased osteogenesis in sheep vertebral bodies compared to controls at 2 and 4 months.
  • Fibrin sealant did not improve osteogenesis and increased coral resorption.

Conclusions:

  • Coral in granular form is osteoconductive for vertebral filling.
  • Restoration of bone trabeculae interconnectivity was observed, but mechanical significance requires further study.
  • Efficacy in osteopenic animals and pain relief need further investigation.