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Distribution of Young's modulus in the cancellous bone of the proximal canine tibia

1994; Elsevier BV; Volume: 27; Issue: 8 Linguagem: Inglês

10.1016/0021-9290(94)90226-7

1873-2380

Dale R. Sumner, Theodore L. Willke, A. Berzins, Thomas M. Turner,

Osteoarthritis Treatment and Mechanisms

Canine cancellous bone is used as a model for human bone in experimental orthopedic research, including models of total knee arthroplasty. Depth-force measurements produced by small-diameter indentation testing were used to derive the variation of Young's modulus over the transverse cross-sectional surface at three levels within the proximal canine tibia. At the most proximal section the presence of lateral and medial peaks of equal modulus (∼1100 MPa) was found. Modulus averages for the three resection levels revealed a trend of distally decreasing values, from 692 MPa proximally to 417 MPa distally. Average regional modulus values for the canine tibia were 50–75% higher than previously reported for the tibia of healthy young adult humans, although the local maxima were only 5–20% greater in canines.