三枚中空双头螺纹加压钉比三枚实心螺纹钉、三翼钉在抗压、抗弯、抗扭强度和刚度上占有一定的优势。
The 3 hollow double heads compression screw appear to offer distinct advantage over the 3 solid screw, trifin in the against pressure, against bending force, torsional strength and torsional rigidity.
利用9具成年新鲜股骨尸体标本，分别采用中空双头螺纹加压钉、实心螺纹钉、三翼钉进行股骨颈骨折内固定，并进行生物力学实验。
Using 9 cadaver femora instrumented, the fracture of femoral neck was fixed with 3 hollow double heads compression screw, 3 solid screw and Trifin respectively.
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