Taitsman J P, Saha S
J Bone Joint Surg Am. 1977 Apr;59(3):419-25.
To assess the tensile strength of wire-reinforced bone cement as used for posterior spine fusion, standardized bone-cement specimens reinforced with stainless steel and Vitallium wires 0.5 and one millimeter in diameter were tested in tension. The results showed that tensile strength of bone cement was increased significantly by reinforcing it with metal wires, the increase in strength being proportional to the number of wires used. Even after failure of the cement, the reinforcing wires still carried an appreciable amount of load, thus avoiding the catastrophic failure of the cement alone. Specimens reinforced with Vitallium wires in general failed at higher loads than specimens reinforced with similar stainless-steel wires. Pull-out studies showed that a hook or a loop at the embedded end of straight wires significantly increased the load necessary to pull the wires out. The tensile strength of twisted stainless-steel wire composed of two 0.5-millimeter strands increased with the number of turns up to about eight turns per inch (2.54 centimeters) and then decreased.
为评估用于后路脊柱融合术的钢丝增强骨水泥的拉伸强度，对用直径0.5毫米和1毫米的不锈钢丝及维他灵丝增强的标准化骨水泥标本进行了拉伸测试。结果表明，用金属丝增强骨水泥可显著提高其拉伸强度，强度的增加与所用金属丝的数量成正比。即使在骨水泥失效后，增强金属丝仍能承受相当大的载荷，从而避免了骨水泥单独出现的灾难性失效。一般来说，用维他灵丝增强的标本比用类似不锈钢丝增强的标本在更高载荷下失效。拔出研究表明，直钢丝嵌入端的钩子或环显著增加了将钢丝拔出所需的载荷。由两根0.5毫米股线组成的绞合不锈钢丝的拉伸强度随着每英寸（2.54厘米）匝数增加到约8匝而增加，然后下降。
