## Abstract Biodegradation of hydroxyapatite (HA)/poly(L‐lactide)(PLLA) composite bone implant rods was studied with the use of two types of HA particles as reinforcing fillers: uncalcined HA (u‐HA) or calcined HA (c‐HA). Composite rods of u‐HA/PLLA and c‐HA/PLLA containing 30 or 40% (w/w) HA were
✦ LIBER ✦
Warping of cross sections in the torsion of long bones with internal fracture fixation plates
✍ Scribed by Dr. G. S. Beaupré; D. R. Carter
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 370 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0736-0266
No coin nor oath required. For personal study only.
✦ Synopsis
Torsion of noncircular beams results in warping of each cross section. When noncircular cross sections are constrained to remain plane, the resulting shear stress distribution is different from what Saint Venant torsion (with warping) would predict. This has practical implications to the stress analysis of plated long bones subjected to torsional loadings. Analyses in which warping is not allowed predict incorrect stress fields in the plate and bone and overpredict the amount of stress shielding associated with fracture plate fixation.
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Long-term study of high-strength hydroxy
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Ishii, Shinsuke ;Tamura, Jiro ;Furukawa, Taizo ;Nakamura, Takashi ;Matsusue, Yos
📂
Article
📅
2003
🏛
John Wiley and Sons
🌐
English
⚖ 394 KB