The structural adaptation of bone around a cortical defect

Author

Shieh, Sheu-Jane ; Zimmerman, Mark C. ; Parsons, J. Russell ; Langrana, Noshir A.

fYear

1993

fDate

18-19 Mar 1993

Firstpage

137

Lastpage

138

Abstract

Bone remodeling about a circular defect was evaluated by measuring the elastic properties of cortical bone with scanning acoustic microscopy. The defects were filled with either a void or rigid inclusion to create various states of stress in the vicinity of the defect. The remodeling observed after 6 months of implantation was of new bone formation on periosteal and endosteal surfaces about the defect region, effectively reducing the magnitude of stress concentration about the defect. There was no difference in the remodeling of bone about void and rigid inclusions. Both provoked significant degrees of surface remodeling that changed the basic structure of the bone cross-section at the level of the defect

Keywords

acoustic impedance; acoustic microscopy; biomechanics; bone; elastic constants; inclusions; prosthetics; stress-strain relations; acoustic impedance mappings; bone implants; bone remodeling; circular defect; cortical bone; cortical defect; elastic properties; endosteal surfaces; metatarsal; new bone formation; periosteal surfaces; rigid inclusion; scanning acoustic microscopy; states of stress; stiffness constant; structural adaptation; surface remodeling; void; Acoustic materials; Acoustic measurements; Animals; Biomedical imaging; Bones; Impedance measurement; Microscopy; Plugs; Stress; Surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1993., Proceedings of the 1993 IEEE Nineteenth Annual Northeast

Conference_Location

Newark, NJ

Print_ISBN

0-7803-0925-1

Type

conf

DOI

10.1109/NEBC.1993.404385

Filename

404385