Tuenty-four weeks after implantation the bending and shear strength of SC PLLA rods remained above 180 Mpa and 75Mpa respectively. They were higher than the strength of human cortical bone.

• 植入24周后，各组SC－PLLA在体内的力学强度均可维持在弯曲强度180Mpa以上，剪切强度75Mpa以上，它们都大于皮质骨强度。