To compare the mechanical performance and the effect on cortical microcirculation of CCPC-Fixand CP, three-point bending test and torsion test were carried out with the plates fixed to syntheticbones that have uniform mechanical properties. Transverse osteotomy at middle shaft of both tibiaewas performed in 10 goats and each was fixed with the CCPC-Fix in the right tibiae and the CP inthe left, 4 animals served as control. The chances of conical microcirculation at differentpostoperative phase were evaluated with radioactive microsphere measurement of regional bloodflow. It was found that bending property demonstrated no significant difference between the twokinds of plates. CP has a better torsion property than that of CCPC-Fix when torsional angle was >18. The conical microcirculation beneath the CCPC-Fix was significantly better than that of theCP. At the postoperatve 2, 4 and 9. weeks, the blood flow was as much as 2.5, 9.9 and 2.8 timesrespectively of the latter's. Although a slight difference in torsion property was found between theCCPC-Fix and CP, the CCPC-Fix was significantly beneficial for eliminating the impairment ofconical microcirculation and improving bone healing.