Hvid I
Arch Orthop Trauma Surg (1978). 1985;104(4):211-7. doi: 10.1007/BF00450212.
The relation of thin-needle axial penetration tests to axial compression tests on machined specimens was examined utilizing distal femoral and proximal tibial epiphyseal cancellous bone. The penetration strength was closely related to the yield strength (r = 0.87), the ultimate strength (r = 0.86), Young's modulus (r = 0.77), the yield energy absorption (r = 0.81), and the ultimate energy absorption (r = 0.84) derived from the compression tests. Generally, femoral specimens were stronger, stiffer, and tougher than tibial specimens. Higher peak penetration strength values were obtained from the medial than from the lateral condyles. The variation of strength within compression test specimens could be expressed in terms of penetration strength; this variation differed slightly between tibial and femoral specimens, but invariably the bone deepest to the joint surface was the weakest. Accordingly, adjustments were introduced in the regression equations connecting the penetration strength to the material properties derived from the compression tests.
利用股骨远端和胫骨近端骨骺松质骨，研究了细针轴向穿刺试验与加工后标本轴向压缩试验之间的关系。穿刺强度与压缩试验得出的屈服强度（r = 0.87）、极限强度（r = 0.86）、杨氏模量（r = 0.77）、屈服能量吸收（r = 0.81）和极限能量吸收（r = 0.84）密切相关。一般来说，股骨标本比胫骨标本更强、更硬且更坚韧。从内侧髁获得的峰值穿刺强度值高于外侧髁。压缩试验标本内强度的变化可以用穿刺强度来表示；胫骨和股骨标本之间的这种变化略有不同，但关节表面最深的骨总是最薄弱的。因此，在将穿刺强度与压缩试验得出的材料特性联系起来的回归方程中引入了调整。
