Table 1b: Histomorphometrical Ingrowth: Tissue Volume Fractions in the Gap

Volume Fraction New Bone Mean % (SD) Bone Graft Mean % (SD) Fibrous Tissue Median % (IQR)
Control 21 (3.7) 8.4 (3.3) 0.1 (0.0 - 0.2)
Periosteum 18 (4.0) 6.7 (2.5) 4.4 (0.3 - 6.4)
Periosteum-Control -2.3 (-5.2; 0.6) -1.7 (-3.6; 0.2)
 Students t-test p = 0.11 p = 0.07
 Wilcoxon p = <0.01

New bone and bone graft are presented as mean with standard deviation (SD) and the absolut difference between treatment groups as mean difference with 95% confidence interval (CI). Fibrous tissue is presented as median with interquartile range (IQ).