R2 values among BMD, structure, nanomechanical, FTIR, and biomechanical parameters studied in sham group.

Note: Modulus and hardness were the results of nanoindentation tests. Elastic modulus, ultimate stress, yield stress, and toughness were the results of 3-point bending tests. R2 values were presented in the table cells. (+) means positive correlation, and (-) means negative correlation. R2>0.75 was considered as strong, and 0.75>R2>0.50 was considered as moderate. R2 values lower than 0.5 were classified as parameters having weak relationship.aPR2 values among BMD, structure, nanomechanical, FTIR, and biomechanical parameters studied in sham group.

备注：模量与硬度为纳米压痕试验的测试结果；弹性模量、极限应力、屈服应力及韧性为三点弯曲试验的测试结果。表格单元格中所呈现的为决定系数R²。符号(+)代表正相关，(-)代表负相关。其中，R²>0.75判定为强相关性，0.50<R²<0.75判定为中等相关性，R²<0.50则归类为弱相关参数。假手术组所研究的骨密度（BMD）、结构、纳米力学、傅里叶变换红外光谱（FTIR）及生物力学参数间的调整后决定系数（aPR2）。