We report a 38-year-old male with a nonunion followed by plate breakage after volar plating of a distal radius osteotomy. Volar locking plates have added a new approach to the treatment of distal radius malunions, due to a lower morbidity of the surgical approach and the strength of the final construction, allowing early mobilization and return to function. Conclusion. Plate breakage is an unco...

Subcutaneous implantation of coarse powders (74-420 micron) of demineralized diaphyseal bone matrix resulted in the local differentiation of endochondral bone. However, implantation of matrix with particle size of 44-74 micron (Fine matrix) did not induce bone. We have recently reported that the dissociative extraction of coarse matrix with 4 M guanidine HCl resulted in a complete loss of the a...

62 INTERNATIONAL DENTISTRY – AUSTRALASIAN EDITION VOL. 7, NO. 1 Abstract The purpose of this study was to evaluate the repair process in the reconstruction of the anterior wall of the frontal sinus of monkeys with bovine bone matrix. Four adult Cebus apella monkeys underwent an ostectomy of the anterior wall of the frontal sinus. The frontal sinus mucosa and the nasofrontal duct were not manipu...

Materials and Methods: An 8 mm calvarial defect was created in the athymic rat and filled with either the test article (BLX Putty) or autograft. This model is a well-established and validated model for testing the osteoregenerative capacity of bone substitutes wherein an 8 mm defect in the rat calvaria will not spontaneously heal without treatment. The test article was provided in ready-touse a...