The bone defect of experimental side was filled with surface-demineralized bone allograft and bone marrow stem cell cultured in vitro.The control side was filled with bone allograft only.

• 将表面脱钙的同种异体骨和来源于受体的体外培养增殖的骨髓间质干细胞混合植入实验侧骨缺损,对照侧仅植入同样制作的异体骨。