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Callus mineralization following distraction osteogenesis of the mandible monitored by scanning acoustic microscopy (SAM).

Adolphs N, Kunz C, Pyk P, Hammer B, Rahn B

AO-Research Institute, Davos-Platz, Switzerland. n_adolphs@hotmail.com

BACKGROUND: Scanning acoustic microscopy uses ultrasound to analyse histomorphology of tissues with microscopic resolution and delivers data about physical properties of the specimen. MATERIAL AND METHODS: Bony consolidation was monitored by scanning acoustic microscopy in 12 embedded specimens of dog mandibles after distraction osteogenesis. Increasing mineralization was detected by measurements of acoustic impedance (Z). RESULTS: There was a strong correlation between acoustic impedance and time of consolidation. Measurements of the speed of sound (v) provided specific information about non-mineralized zones of the distracted area. Distribution of density in the distracted area could be reconstructed by using the measurements of acoustic impedance and speed of sound. CONCLUSION: The method seems suitable for studying bone remodelling qualitatively and quantitatively.

Published 13 September 2005 in J Craniomaxillofac Surg, 33(5): 314-7.
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