ULTRASONOMETRY EVALUATION OF AXIAL COMPRESSION OSTEOSINTHESIS. AN EXPERIMENTAL STUDY

Author(s)

Bezuti, Marcio Takey ^[1] ; Mandarano Filho, Luiz Garcia ^[1] ; Barbieri, Giuliano ^[1] ; Mazzer, Nilton ^[1] ; Barbieri, Claudio Henrique ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Biomech Med & Rehabil Locomotor Syst, Fac Med Ribeirao Preto, Bioengineer Lab, BR-14049900 Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: Acta Ortopédica Brasileira; v. 21, n. 1, p. 46-51, 2013.
• Web of Science Citations: 2

Abstract

Objective: To measure the ultrasound propagation velocity (UV) through a tibial transverse osteotomy in sheep, before and after the fixation with a DCP plate. Material and methods: Ten assemblies of a DCP plate with the diaphyseal segment of tibiae, in which a transverse osteotomy was made, were used. Both coronal and sagittal transverse and the axial UV were measured, first with the intact bone assembled with the plate and then with the uncompressed and compressed osteotomy; statistical comparisons were made at the 1% (p<0.01) level of significance. Results: Compared with the intact bone assembly, axial UV significantly decreased with the addition of the osteotomy and significantly increased with compression, presenting the same behavior for the other modalities, although not significantly. Discussion and conclusion: In accordance with the literature data on the ultrasonometric evaluation of fracture healing, underwater UV measurement was able to demonstrate the efficiency of DCP plate fixation. The authors conclude that the method has a potential for clinical application in the postoperative follow-up of DCP plate osteosinthesis, with a capability to demonstrate when it becomes ineffective. Laboratory investigation. (AU)

• FAPESP's process: 07/56422-0 - Ultrasonometric evaluation of bone healing and cortical bone density
• Grantee: Claudio Henrique Barbieri
• Support Opportunities: Research Projects - Thematic Grants