This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Tibia Bending: Strength and Response
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 01, 1985 by SAE International in United States
Annotation ability available
Unembalmed human tibias were subjected to static and dynamic three-point bending tests using the Wayne State Translational Impactor. Simple supports potted to the bone near the proximal and distal epiphyses were attached to force transducers and load was applied at midspan by a 32-kg impactor that had a rigid 25-mm diameter cylindrical contact surface. Loads were applied through the normal flesh covering the bone, and were directed from the anterior to posterior or from lateral to medial. Each bone was loaded once and sustained fracture at or near mid-span. Peak bending moments, impact speeds and load-deflection data are presented. Data regarding cross-sectional properties adjacent to the fracture site and mineral content of the specimens are included, along with a study of the correlations of strength with these various parameters. Midshaft fracture of the tibia occurred at bending moments of about 280 and 320 N.m for females and males, respectively, regardless of the direction of impact. The principal inertial axes of the tibial cross-section were oriented very nearly along the AP and SI directions. Local crushing of bone as a result of high compressive contact stresses never occurred.
CitationNyquist, G., Cheng, R., El-Bohy, A., and King, A., "Tibia Bending: Strength and Response," SAE Technical Paper 851728, 1985, https://doi.org/10.4271/851728.
- Pritz H.B., Hassler C.R. and Weis E.B., “Pedestrian Impact: Baseline and Preliminary Concepts Evaluation”, Volume II - Technical Discussion, Final Report, Contract No. DOT-HS-4-00961, Submitted to NHTSA by Battelle Columbus Laboratories, May, 1978.
- Kramer M., Burow K. and Heger A., “Fracture Mechanism of the Lower Legs Under Impact Load”, SAE Paper No. 730966, Seventeenth Stapp Car Crash Conference Proceedings, Society of Automotive Engineers, 1973.
- Yamada H., Strength of Biological Materials, Edited by Evans F.G., Williams and Wilkins, Baltimore, 1970.
- Nyquist G.W., “Injury Tolerance Characteristics of the Adult Human Lower Extremities Under Static and Dynamic Loading” Contained in Biomechanical and Medical Aspects of Lower Extremity Injuries, SAE Publication SP-606, Society of Automotive Engineers, June, 1985.
- Melvin J.W. and Weber K., “Review of Biomechanical Impact Response and Injury in the Automotive Environment,” Task B Final Report, NHTSA Contract DTNH22-83-C-07005, March, 1985.
- Katz J. and Ukraincik K., “On the Anisotropic Elastic Properties of Hydroxyapatite,” Journal of Biomechanics, 4:221-227, 1971.
- Ascenzi A. and Benvenuti A., “Evidence of a State of Initial Stress In Osteonic Lamellae,” Journal of Biomechanics, 10: 447-453, 1977.
- Johnell O., Nilsson B. and Wiklund P., “Bone Morphology in Alcoholics,” Clinical Orthopaedics and Related Research, 165:253-256, 1982.